A clothes treating apparatus having a drying function, the clothes treating apparatus comprising: a cabinet; a drum provided within the cabinet; a heat-exchanger heat-exchanged with air exhausted from the drum; a lint filter (210a, 210b) disposed on an upstream side of the heat-exchanger with respect to flow of air exhausted from the drum to collect lint in the air, wherein the lint filter (210a, 210b) includes a frame having at least one opening, and a mesh part provided in the opening and allowing passage of air and restraining passage of lint; a spray tube (250a, 250b) for spraying water to the lint filter (210a, 210b) such that lint collected in the lint filter (210a, 210b) is separated from the lint filter (210a, 210b); and a lint collecting part provided below the lint filter (210a, 210b) or below the heat-exchanger to collect the separated lint, characterized in that the lint filter (210a, 210b) is disposed to be sloped with respect to a vertical direction of the cabinet, and a space between an upper portion of the mesh part and the heat-exchanger is greater than a space between a lower portion of the mesh part and the heat-exchanger, wherein an outlet of the spray tube (250a, 250b) is provided on a downstream side of the lint filter (210a, 210b) with respect to a flow direction of air, and the water is sprayed to an upper portion of a surface of a downstream side of the mesh part, wherein the lint collecting part comprises: a bottom part and a side wall part extending upward from the edges of the bottom part, wherein the bottom part and the side wall part include a frame forming an opening, and a mesh part disposed to block the opening of the frame, and wherein the bottom part is arranged for the water and the separated lint to drop thereon such that the bottom part allows passage of the water and restrains passage of the lint to collect the lint thereon. a cabinet; a drum provided within the cabinet; a heat-exchanger heat-exchanged with air exhausted from the drum; a lint filter (210a, 210b) disposed on an upstream side of the heat-exchanger with respect to flow of air exhausted from the drum to collect lint in the air, wherein the lint filter (210a, 210b) includes a frame having at least one opening, and a mesh part provided in the opening and allowing passage of air and restraining passage of lint; a spray tube (250a, 250b) for spraying water to the lint filter (210a, 210b) such that lint collected in the lint filter (210a, 210b) is separated from the lint filter (210a, 210b); and a lint collecting part provided below the lint filter (210a, 210b) or below the heat-exchanger to collect the separated lint, characterized in that the lint filter (210a, 210b) is disposed to be sloped with respect to a vertical direction of the cabinet, and a space between an upper portion of the mesh part and the heat-exchanger is greater than a space between a lower portion of the mesh part and the heat-exchanger, wherein an outlet of the spray tube (250a, 250b) is provided on a downstream side of the lint filter (210a, 210b) with respect to a flow direction of air, and the water is sprayed to an upper portion of a surface of a downstream side of the mesh part, wherein the lint collecting part comprises: a bottom part and a side wall part extending upward from the edges of the bottom part, wherein the bottom part and the side wall part include a frame forming an opening, and a mesh part disposed to block the opening of the frame, and wherein the bottom part is arranged for the water and the separated lint to drop thereon such that the bottom part allows passage of the water and restrains passage of the lint to collect the lint thereon.