A laundry treating machine is provided. The laundry treating machine may include a tub to receive wash water, a drum rotatably provided in the tub, an air supply device to supply air to the tub, a lint filter to filter lint from the air circulated by the air supply device, a filter cleaning device to supply cleaning water to the lint filter to remove the lint from the lint filter, and a cooling water supply device to supply cooling water to an inner surface of the tub such that moisture contained in air is condensed at the inner surface of the tub.