Electrothermal blowing drying box convenient for heat recovery

The utility model discloses an electrothermal blowing dry box convenient to recover heat, which comprises a shell, a drying bin is arranged in the shell, an electromechanical control room is arranged on one side of the drying bin, fixing frames are fixedly arranged on two sides in the drying bin, a plurality of clamping grooves are arranged on the fixing frames, sliding rails are fixedly arranged in the clamping grooves, and the sliding rails are arranged on the sliding rails. A placement plate is movably arranged at the upper ends of the sliding rails, a plurality of through holes are formed in the placement plate, electric heating wires are fixedly arranged at the two ends of a fixing frame in the drying bin, an air blower is fixedly arranged in the electromechanical control chamber, and an air inlet pipeline is fixedly arranged at an air inlet of the air blower; an air outlet pipeline is fixedly arranged at an air outlet of the air blower, and a heat recovery bin is fixedly arranged on one side of the air