WASHING AND DRYING MACHINE

To suppress occurrence of drying failure such as lack of drying of laundry due to sucking of washing water (cooling water) by a suction side of a blower (blower fan) being decompressed.SOLUTION: A washing and drying machine 1A includes: an inner tub 4 for storing laundry and rotating in each step of washing, rinsing and dewatering; an outer tub 3 for surrounding the inner tub and for storing water; a drainage passage 7 for draining the water in the outer tub; a blower 5a for supplying wind to the inner tub and the outer tub; an air passage (circulation air passage 5d) for connecting the outer tub and the blower; an air passage filter 6 provided between the outer tub and the air passage, and for capturing lint going toward a suction port of the air passage; and a cooling water supply part (cooling water nozzle 9) provided between the blower and the air passage filter, and for supplying cooling water (dehumidification water) for dehumidifying the air containing humidity. Between the blower and the air filter, an air introduction valve 13 is provided.SELECTED DRAWING: Figure 1 【課題】送風機（送風ファン）の吸込み側が減圧されることで洗浄水（冷却水）の吸込みによる洗濯物の乾燥不足などの乾燥不良が発生することを抑制する。【解決手段】洗濯乾燥機１Ａは、洗濯物を収容し、洗い、すすぎ、脱水の各工程時に回転する内槽４と、内槽を囲い、水を溜める外槽３と、外槽内の水を排水する排水路７と、内槽と外槽に風を供給する送風機５ａと、外槽と送風機を接続する風路（循環風路５ｄ）と、外槽と風路との間に設けられ、風路の吸込口に向かうリントを捕集する風路フィルタ６と、送風機と風路フィルタとの間に設けられ、湿気を含んだ風を除湿する冷却水（除湿水）を供給する冷却水供給部（冷却水ノズル９）と、を備え、送風機と風路フィルタとの間に空気導入弁１３を有する。【選択図】図１