Environment-friendly powder spraying production line powder online recovery device

The utility model discloses an environment-friendly powder spraying production line powder online recovery device which comprises a collecting box, a collecting hopper is arranged at the top end of the collecting box, a filter screen is arranged at the bottom end of the collecting hopper, rotating shafts are arranged on the two sides in the collecting box, cams are arranged on the outer sides of the two rotating shafts, and a conveying pipe is arranged on one side of the collecting box. Through the arrangement of the cams and the scrapers, the servo motor rotates to drive the two rotating shafts to rotate relatively so as to drive the cams to rotate relatively, so that the cams can beat the filter screen, and powder on the surface of the filter screen can fall into the collecting box; and a servo motor works to drive a lead screw to rotate, and then a scraper blade can be driven to move, so that the scraper blade can clean impurities falling onto the surface of the filter screen, and then powder recycling is