Drying room constant temperature control device

The invention relates to a drying room constant temperature control device. The drying room constant temperature control device comprises a box body with a circulation inlet and a circulation outlet, and a radiator arranged in the box body. The drying room constant temperature control device is characterized in that the lower part of the box body is provided with a heat energy equalizing structure; the radiator is arranged at the middle of the heat energy equalizing structure; a heat energy reuse structure in the radiator is arranged at the lower part of the heat energy equalizing structure; the radiator is connected with a temperature control instrument; and the box body is provided with a temperature detection component which is in signal connection with the temperature control instrument. With the drying room constant temperature control device adopted, the temperature control instrument can detect and perform constant temperature control on the temperature of heat transfer liquid, so that the drying temperature of the drying room radiator can be controlled, and therefore, the temperature of an existing drying room, which was uncontrollable in the prior art, can be controlled. Separation boards and openings of the separation boards are adopted, so that the temperature of the heat transfer liquid can be uniform, and waste heat of heat transfer can be effectively utilized; the position of the radiator in the drying room constant temperature control device is properly set, and discharge tubes are adopted, and therefore, the heat transfer liquid can be uniformly heated, heat transfer can be performed maximally.