DRYING MACHINE

PROBLEM TO BE SOLVED: To provide a drying machine allowing for a certain amount of stagnant water while having a function to discharge dehumidification water stagnant by any chance.SOLUTION: The drying machine includes: a rotary drum 1 for housing an object to be dried; a heat pump device 30 in which a compressor 32, a radiator 33, a decompressor 34 and a heat sink 35 are connected with a pipeline 36 filled with a refrigerant; a unit case 31 housing the heat pump device 30; a blower 40 for blowing drying air in circulation air paths 41, 43; and a water discharge pump 70 for discharging dehumidification water. A check valve 44 for discharging overflowed dehumidification water is provided on a sidewall 31c on a lower part of the unit case 31. A rib 45 is provided on a bottom face of the unit case 31 so as to extend above from the bottom face 31d and extend inward of the unit case 31 from a sidewall 31c to surround the check valve 44.