A vacuum cleaner comprising: a main body configured to generate a difference in air pressure; and a suction nozzle configured to suck up dust from a floor by using the difference in air pressure, wherein the suction nozzle comprises: a connector forming a passage through which the dust moves into the main body ; and a housing rotatably mounted in the connector and forming an inlet having a cylindrical shape, wherein the dust enters the passage through the inlet , wherein the connector comprises: an insertion portion having a cylindrical shape, the insertion portion being inserted into the inlet ; characterised in that the connector comprises further a first connection portion spaced apart from the inlet in a direction of the passage ; and a coupling part mounted in an outer surface of the insertion portion , the coupling part , together with the first connection portion , blocking movement of the housing in the direction of the passage , and wherein the inlet prevents relative deformation of the insertion portion and the coupling part . a main body configured to generate a difference in air pressure; and a suction nozzle configured to suck up dust from a floor by using the difference in air pressure, wherein the suction nozzle comprises: a connector forming a passage through which the dust moves into the main body ; and a housing rotatably mounted in the connector and forming an inlet having a cylindrical shape, wherein the dust enters the passage through the inlet , wherein the connector comprises: an insertion portion having a cylindrical shape, the insertion portion being inserted into the inlet ; characterised in that the connector comprises further a first connection portion spaced apart from the inlet in a direction of the passage ; and a coupling part mounted in an outer surface of the insertion portion , the coupling part , together with the first connection portion , blocking movement of the housing in the direction of the passage , and wherein the inlet prevents relative deformation of the insertion portion and the coupling part . a connector forming a passage through which the dust moves into the main body ; and a housing rotatably mounted in the connector and forming an inlet having a cylindrical shape, wherein the dust enters the passage through the inlet , wherein the connector comprises: an insertion portion having a cylindrical shape, the insertion portion being inserted into the inlet ; characterised in that the connector comprises further a first connection portion spaced apart from the inlet in a direction of the passage ; and a coupling part mounted in an outer surface of the insertion portion , the coupling part , together with the first connection portion , blocking movement of the housing in the direction of the passage , and wherein the inlet prevents relative deformation of the insertion portion and the coupling part . an insertion portion having a cylindrical shape, the insertion portion being inserted into the inlet ; characterised in that the connector comprises further a first connection portion spaced apart from the inlet in a direction of the passage ; and a coupling part mounted in an outer surface of the insertion portion , the coupling part , together with the first connection portion , blocking movement of the housing in the direction of the passage , and wherein the inlet prevents relative deformation of the insertion portion and the coupling part . a first connection portion spaced apart from the inlet in a direction of the passage ; and a coupling part mounted in an outer surface of the insertion portion , the coupling part , together with the first connection portion , blocking movement of the housing in the direction of the passage , and wherein the inlet prevents relative deformation of the insertion portion and the coupling part . <EOS>