Up-down air supply type hot air circulation heating device

The invention discloses an up-and-down air supply type hot air circulation heating device which is characterized in that hot air is conveyed into an upper heating bin and a lower heating bin through an upper air supply outlet and a lower air supply outlet respectively, an air outlet is formed in the other side, and a flow guide plate is arranged in a fluid passing area, so that a heat conduction disc can be heated more uniformly; the design of the upper and lower interlayers and the middle fixing ring can better preserve heat on the surface. The device mainly comprises an upper heating bin, a lower heating bin, a heat conducting plate, an air blower, a pipeline, a flow guide plate, an air inlet, an air outlet and a fixing ring. The upper heating bin and the lower heating bin are connected through a shaft and can turn up and down, a right fan of the heating bins is connected with a pipeline and used for conveying hot air, a left fan is provided with an air outlet, cross-shaped guide plates are designed in the