Washing and drying all-in-one machine

The invention provides a washing and drying all-in-one machine which comprises an outer cylinder, an inner cylinder and an air duct, the inner cylinder is rotatably arranged in the outer cylinder, the air duct is provided with an air inlet communicated with the outer cylinder, the air inlet is provided with a filter screen, and when the inner cylinder rotates, the filter screen can generate friction with clothes in the inner cylinder; the air inlet is formed in the wall surface, extending out of the opening of the inner barrel, of the outer barrel, and a filter screen is arranged on the air inlet. According to the washing and drying all-in-one machine, the air inlet of the air duct is formed in the wall face, extending out of the opening of the inner barrel, of the outer barrel, the filter screen of the air inlet can achieve self-cleaning through water flow with rotation inertia in the washing process, whipping/touch friction can be generated between the filter screen and clothes in the washing and drying pro