Box-type aeration-drying device and aeration-drying method

The invention relates to a box type ventilation drying device and a ventilation drying method, the drying device comprises a box body used as a to-be-dried material carrier, a ventilation system used for ventilating the box body, and a combustion system used for heating air introduced by the ventilation system, and a plurality of layers of corrugated plates are stacked in the box body from top to bottom; grooves used for containing materials to be dried are formed in the corrugated plates, screening holes with the hole diameter smaller than that of the materials to be dried are evenly distributed in the grooves, an air channel used for drying the materials to be dried through hot air is formed between every two adjacent corrugated plates, and the circulating system is used for enabling air to alternately circulate along the air channels. According to the drying device, materials can be subjected to forward and reverse alternate circulating circulation drying through hot air in the air channel, the materials a