DRUM TYPE WASHING AND DRYING MACHINE

PROBLEM TO BE SOLVED: To realize a drum type washing and drying machine capable of preventing a valve body from being fixed on a valve holder while preventing a backflow of humid air during drying, capable of suppressing noise leak to the outside of the machine during a washing step or a dewatering step, and capable of extending a service life of the valve body itself.SOLUTION: A valve body 22, which is provided at a connecting tube 19 communicating between the inside of an outer tub 3 and a detergent case 14 by constantly being biased in a closing direction, has an annular plane part 23 on an outer peripheral part, and has a cross-shaped slit 26 on the plane part on the central side. A valve holder 24 has an annular plane part on an inner end surface 25, and has a cross-shaped plane part 28 which comes into close contact with the valve body 22 on the central side. By inclining the plane part 28 and the inner end surface 25 in such a manner that an upper end is located on the detergent case 14 side more than a lower end, gaps are eliminated between the slit 26 of the valve body 22 and the cross-shaped plane part 28 of the valve holder 24, and between the plane part 23 on the outer peripheral part of the valve body 22 and the inner end surface 25 of the valve holder, and they come in close contact.