Fluidized bed cooler

The utility model relates to a fluidized bed cooler, which comprises a cooler shell with a feed port at the left end and a discharge port at the right end, an inner cavity of the cooler shell is divided into an upper side chamber and a lower side chamber by a breathable layer, the lower side chamber is provided with a fluidized air inlet, the upper side chamber is provided with an exhaust port, and the upper side chamber is provided with a fluidized air outlet. An air heat exchanger and a water heat exchanger are sequentially arranged in the upper side cavity from left to right, inserting plates are arranged between the air heat exchanger and the water heat exchanger and between heat exchange units of the heat exchangers, and inserting plate powder channels allowing powder to pass through from left to right are arranged between the inserting plates and the top of the cooler shell or between the inserting plates and the ventilation layer. The heights of every two adjacent powder channels are different. The flu