The invention relates to a plasterboard drying bin hot wind recovery device. A heat conduction oil heat dissipation pipe system is arranged in a drying bin (1). A gas exhaust pipe (3) is arranged on the top of the drying bin (1). The plasterboard drying bin hot wind recovery device is characterized in that the gas exhaust pipe (3) is communicated with one end of a hot wind recovery pipe (4), the other end of the hot wind recovery pipe (4) is communicated with a cooling bed (2) below the drying bin (1), and the drying bin (1) and the cooling bed (2) are communicated into a whole. The waste heatof exhaust gas produced after a plasterboard is dried is recovered, fuel expenditure is saved, and running cost of a factory is reduced.