The invention relates to a double-circulation-air-system heat pump type clothes drying cabinet, which comprises a clothes drying cabinet body, wherein the clothes drying cabinet body comprises a clothes room and an equipment room, the clothes room and the equipment room are separated through a separation plate, an air passage is arranged in the equipment room, the two ends of the air passage are respectively provided with an air inlet and an air outlet, the air inlet and the air outlet are respectively connected to the clothes room, the equipment room also comprises a refrigeration dehumidifying system and a fan, an evaporator, a condenser and a fan arranged in the refrigeration dehumidifying system are all arranged in the air passage, and the fan is arranged between the evaporator and the condenser. The double-circulation-air-system heat pump type clothes drying cabinet solves the technical problems that in the existing heat pump type clothes drying equipment and the clothes drying technology, the ventilation quantity of the refrigeration dehumidifying system is small, the ventilation quantity required by the clothes drying part is great, so the ventilation quantity requirements are not matched, in addition, the air humidity in the clothes room is reduced along with the gradual blowing drying of the humid clothes, the air dew point temperature is continuously reduced, the dehumidifying effect of the refrigeration dehumidifying system is greatly reduced, the attenuation is too fast, and the like.