Efficient low-noise material recovery environment-friendly fan

The invention relates to the technical field of fans, in particular to a high-efficiency low-noise material recovery environment-friendly fan which is characterized in that an impeller comprises a plurality of blades and a rear disc connected to the rear sides of the blades; the blades comprise the high blades and the low blades, the high blades and the low blades are linearly and evenly installed on a shaft disc of the impeller at intervals, and the number of the high blades and the number of the low blades are equal and are each at least three. An axial gap exists between the current collector and the impeller, and the axis of the air inlet and the axis of the impeller are arranged in a non-collinear mode. The high-efficiency low-noise environment-friendly material recovery fan provided by the invention has relatively high flow, total pressure and fan efficiency and relatively low aerodynamic noise of the fan, and the problem that the impeller is blocked by materials is solved. 本发明涉及风机技术领域，尤其涉及一种高效低噪物料回收环保风