A remaining water suction device having an air blowing function according to the present disclosure includes a suction and blowing integrated nozzle, a suction motor unit for providing a suction force to suction remaining water into the suction and blowing integrated nozzle, a drain tank for storing a liquid from the suction and blowing integrated nozzle, an air blowing module for supplying pressurized air to the suction and blowing integrated nozzle, and a main body with the suction and blowing integrated nozzle, the suction motor unit, the drain tank and the air blowing module mounted therein.