Printing packaging box drying equipment

The invention belongs to the technical field of printing machine drying equipment, and particularly relates to printing packaging box drying equipment which comprises a drying box, a sucking pump, a heat dispersion plate and an air outlet pipe. The heat exchange assembly is installed at the top of the drying box, the air inlet pipe and the air outlet pipe both extend into the heat exchange assembly, and the air inlet pipe and the air outlet pipe conduct heat exchange in the heat exchange assembly; the wall flow assembly is installed in the heat exchange assembly and used for guiding airflow to flow close to the wall; the wall flow assembly is arranged to forcibly guide the airflow, so that the airflow flows along the wall, the contact effect between the output airflow and the heat exchange wall and between the input airflow and the heat exchange wall is effectively enhanced, and compared with the heat exchange effect of direct radial flowing or transverse movement of the airflow through stirring in the prior