Powder dehumidification fluidized bed drying equipment

The invention discloses powder dehumidification fluidized bed drying equipment which comprises an air blowing mechanism, a graded fluidization device, a feeding cavity, a feeding port and an exhaust port. The air blowing mechanism is connected with an external air blower and fixed to a rack. The graded fluidization device is fixed above the air blowing mechanism; the feeding cavity is fixed at the top of the graded fluidization device; the feeding hole is formed in the side surface of the feeding cavity; the exhaust port and the graded fluidization device are coaxially arranged, and the exhaust port is located in the middle of the feeding cavity. Compared with the prior art, materials are subjected to multi-stage fluidization drying, the crushing rings are arranged between the stages of fluidization assemblies, the materials are spread under the action of the vibration motor, the caked materials are moved to the crushing rings to be partially crushed, the materials are fully dried under multiple times of mova