A clothes treating apparatus comprising: a cabinet with a top cover; a drum rotatably provided within the cabinet and receiving laundry or a dry target; and a heat pump module comprising an evaporator, a vapor-liquid separator, a compressor, a condenser, and an expansion valve, wherein said heat pump module is configured to circulate a refrigerant by the evaporator, the vapor-liquid separator, the compressor, the condenser, and the expansion valve, and to circulate air discharged from the drum back to the drum by way of the evaporator and the condenser, wherein the vapor-liquid separator includes: a casing having an accommodation space therein, formed in a cylindrical shape; an inlet (1151a1) formed in the casing and allowing a refrigerant mixture fluid to be intaken to the accommodation space therethrough; an outlet (1151a2) formed on the side of the inlet and allowing a gas phase refrigerant separated from the refrigerant mixture fluid to be discharged therethrough; a first partition comprising a communication hole dividing the accommodation space into a discharge flow channel (1151c2) discharging the gas phase refrigerant and a liquid storage part (1151c1) providing a storage space for a liquid phase refrigerant and/or oil separated from the refrigerant mixture fluid; a suction pipe extending to the accommodation space through the inlet (1151a1) and passing through the first partition through the communication hole, wherein the communication hole is larger than the diameter of the suction pipe so as to allow for a flow of gaseous refrigerant towards the outlet (1151a2), wherein the first partition protrudes from a lower surface of the casing in a direction perpendicular to an outer circumferential surface of the casing, facing the inlet (1151a1) and the outlet (1151a2), and disposed to be spaced apart from the side on which the inlet (1151a1) and the outlet (1151a2) are formed, wherein an oil return hole is formed in the first partition, wherein the casing is disposed to be downwardly sloped toward the outlet (1151a2) with respect to the top cover of the cabinet. a cabinet with a top cover; a drum rotatably provided within the cabinet and receiving laundry or a dry target; and a heat pump module comprising an evaporator, a vapor-liquid separator, a compressor, a condenser, and an expansion valve, wherein said heat pump module is configured to circulate a refrigerant by the evaporator, the vapor-liquid separator, the compressor, the condenser, and the expansion valve, and to circulate air discharged from the drum back to the drum by way of the evaporator and the condenser, wherein the vapor-liquid separator includes: a casing having an accommodation space therein, formed in a cylindrical shape; an inlet (1151a1) formed in the casing and allowing a refrigerant mixture fluid to be intaken to the accommodation space therethrough; an outlet (1151a2) formed on the side of the inlet and allowing a gas phase refrigerant separated from the refrigerant mixture fluid to be discharged therethrough; a first partition comprising a communication hole dividing the accommodation space into a discharge flow channel (1151c2) discharging the gas phase refrigerant and a liquid storage part (1151c1) providing a storage space for a liquid phase refrigerant and/or oil separated from the refrigerant mixture fluid; a suction pipe extending to the accommodation space through the inlet (1151a1) and passing through the first partition through the communication hole, wherein the communication hole is larger than the diameter of the suction pipe so as to allow for a flow of gaseous refrigerant towards the outlet (1151a2), wherein the first partition protrudes from a lower surface of the casing in a direction perpendicular to an outer circumferential surface of the casing, facing the inlet (1151a1) and the outlet (1151a2), and disposed to be spaced apart from the side on which the inlet (1151a1) and the outlet (1151a2) are formed, wherein an oil return hole is formed in the first partition, wherein the casing is disposed to be downwardly sloped toward the outlet (1151a2) with respect to the top cover of the cabinet. a casing having an accommodation space therein, formed in a cylindrical shape; an inlet (1151a1) formed in the casing and allowing a refrigerant mixture fluid to be intaken to the accommodation space therethrough; an outlet (1151a2) formed on the side of the inlet and allowing a gas phase refrigerant separated from the refrigerant mixture fluid to be discharged therethrough; a first partition comprising a communication hole dividing the accommodation space into a discharge flow channel (1151c2) discharging the gas phase refrigerant and a liquid storage part (1151c1) providing a storage space for a liquid phase refrigerant and/or oil separated from the refrigerant mixture fluid; a suction pipe extending to the accommodation space through the inlet (1151a1) and passing through the first partition through the communication hole, wherein the communication hole is larger than the diameter of the suction pipe so as to allow for a flow of gaseous refrigerant towards the outlet (1151a2), wherein the first partition protrudes from a lower surface of the casing in a direction perpendicular to an outer circumferential surface of the casing, facing the inlet (1151a1) and the outlet (1151a2), and disposed to be spaced apart from the side on which the inlet (1151a1) and the outlet (1151a2) are formed, wherein an oil return hole is formed in the first partition, wherein the casing is disposed to be downwardly sloped toward the outlet (1151a2) with respect to the top cover of the cabinet.