Multi-stage separation composite powder selecting equipment

The utility model discloses multi-stage separation composite powder selecting equipment which comprises a machine shell, a primary screening structure and a composite screening plate, an inclined panel is connected with the composite screening plate, and filtering holes are formed in the composite screening plate. A material guide cylinder is arranged in the machine shell, a first material outlet is formed in the machine shell, a material receiving table is arranged on the first material outlet, and a support is arranged on the material receiving table; the primary screening structure comprises a first motor and a screening barrel, and the barrel wall of the screening barrel is of a hollow structure. The material screening barrel is communicated with the material guiding barrel and the material receiving table, the inclined panel is arranged below the material screening barrel, the compound screening plate is connected with the machine shell, and a second discharging port is formed in one side of the compound