The invention discloses a metal powder waste recovery device. The metal powder waste recovery device comprises a box body, wherein a flushing box is installed at the inner bottom of the box body, a vertical filter screen is installed in the flushing box, a tap water pipe is connected to the lower part of the side surface of the box body, a booster pump is installed on one end, which extends into the flushing box, of the tap water pipe, a nozzle is installed on one end, which is located in the flushing box, of the tap water pipe, a rotating shaft is fixed to the lower end of an output shaft of a driving motor by virtue of a coupling, an abrasive disk is fixed to the lower end of the rotating shaft, a second falling pipe is connected to the top of a crushing box, a funnel is fixed to the top of the second falling pipe, a combustion box is fixed to the top of the funnel, a gas pipeline is connected to the upper part of the side surface of the box body, one end of the gas pipeline extends into the combustion box, a nozzle is installed on one end, which is located in the combustion box, of the gas pipeline, and a feed pipe is connected to the top of the combustion box. The metal powder waste recovery device has the advantages of novel structure, clever design and reasonable structure and is suitable for popularization.