To provide a washing-drying machine and a drying machine each capable of enhancing drying efficiency.

There are included a nozzle 38 (supply port) to supply warm air into an interior tub 10 and a vent 32b to vent the warm air outside a case 1. The nozzle 38 and the vent 32b are located on the opposite side each other across the center in the depth direction of an exterior tub 20. In addition, the nozzle 38 is located above the rotation center of an interior tub 10, and the vent 32b is located below the rotation center. The vent 32b is also formed on an air blow duct 30, set at the height to function as a water overflow port, and connected with the downstream side of the drainage valve V of a drainage hose 8 via a pipe coupling 50 and a bellows hose 51.