Plate spraying bin

The utility model relates to the technical field of plate purification, and provides a plate spraying bin which comprises a rack, a spraying bin chamber arranged on the rack, a plate conveying mechanism and a pair of spraying assemblies. The spraying chamber comprises an upper chamber and a lower chamber, a plate inlet is formed in one side of the spraying chamber, and a plate outlet is formed in the other side of the spraying chamber; the plate conveying mechanism is located in the spraying bin. The spraying assemblies are arranged on the upper bin and the lower bin correspondingly and matched to spray solutions to the top faces and the bottoms of the plates. The upper bin and the lower bin are each provided with a plurality of air extraction openings, the air extraction openings are connected with air extraction devices, and the air extraction devices are used for extracting the spraying solution dispersed in the spraying bin. The top face and the bottom face of the plate in the spraying bin can be sprayed