WASHING AND DRYING MACHINE

PROBLEM TO BE SOLVED: To provide a washing and drying machine improved in blowing performance and noise performance of an air blower.SOLUTION: The washing and drying machine comprises: a rotary drum 53; a water tank 52; a motor 54; and an air blower 62 including an impeller 1, a casing 2 housing the impeller 1, and a driving fan motor 3 rotating the impeller 1. The impeller 1 includes a main plate 1a, an annular shroud 1b and a plurality of blades 1c. A front edge center 1h corresponding to substantially the center of a front edge 1d of each of the blades 1c is formed in a substantially arc shape protruding inward beyond an inside diameter of an inlet port 2a of the casing 2. A front edge upper portion 1g corresponding to an upper portion of the front edge 1d is formed by a part of an arc of a circle centering at a point where a center in a rib thickness of the inlet port 2a crosses a lower edge of the inlet port. A point where the front edge 1d is in contact with the main plate 1a is disposed in a position closer to an outer peripheral side than the front edge center 1h. Therefore, a length of an air channel disposed on a side of the main plate 1a of the blade 1c is thus made shorter than a length of an air channel disposed on a side of the shroud 1b, so that blowing performance may be improved and NZ noise may be reduced due to uniform distribution of blowing air velocity.