Multi-stage airflow combined type powder concentrator

The utility model discloses a multistage airflow combined type powder concentrator, which relates to the technical field of powder concentration, and comprises a tank body, the bottom of the left side of the outer wall of the tank body is fixedly connected with a first-stage air inlet and a second-stage air inlet, the first-stage air inlet is positioned above the second-stage air inlet, the bottom of the tank body is fixedly connected with a first-stage discharge port and a second-stage discharge port, and the second-stage discharge port is positioned above the first-stage discharge port. The first-stage discharging port is located on the left side of the second-stage discharging port, an exhaust pipe is fixedly connected to the top of the tank body, an auxiliary feeding structure is fixedly installed at the top of the tank body, and a recycling structure is fixedly installed at the bottom of the exhaust pipe. According to the multi-stage airflow combined type powder concentrator, under the action of the auxi