Grain air-drying device

The utility model relates to the technical field of air drying equipment, in particular to a grain air drying device which is characterized in that a cavity with an opening in the top end is formed in a storage bin, a discharge port is formed in the bottom end of the storage bin, and a conveying mechanism comprises a vertical mounting pipe, a horizontal mounting pipe with one end fixedly connected with the upper end of the vertical mounting pipe, a conveying piece and an air blowing piece; the conveying part is arranged in the vertical mounting pipe and the horizontal mounting pipe, a feeding port is formed in the lower end of the vertical mounting pipe, a discharging port is formed in the other end of the horizontal mounting pipe and located above the opening, the vertical mounting pipe and the horizontal mounting pipe communicate with a plurality of air blowing parts, and the feeding mechanism is connected between the discharging port and the feeding port. The feeding mechanism is used for conveying the gra