Heat pump drying equipment

The utility model discloses heat pump drying equipment, which belongs to the field of drying equipment, and comprises a closed drying box body and a closed evaporator box body, an evaporator is arranged in the evaporator box body, the evaporator is connected with a compressor, a condenser and an expansion valve through a working medium circulating pipeline, and the condenser is arranged in the drying box body; the evaporator box body is provided with an air inlet which is communicated with the interior of the drying box body and allows air in the drying box body to enter the evaporator box body, the evaporator box body is provided with an air outlet which is communicated with the interior of the drying box body and allows air in the evaporator box body to enter the drying box body, and the air inlet or the air outlet is provided with a first fan. The evaporator comprises a second fan; a drainage pipeline communicated with the outside of the drying box body is arranged on the evaporator. The heat efficiency is