Dry powder extinguisher filling machine

The utility model discloses a dry powder fire extinguisher filling machine, which belongs to the technical field of fire extinguisher filling devices, and comprises a rack, a vacuum pump, a filter box, a recovery box and a vacuumizing counterweight cover, the vacuum pump is arranged on the rack, the filter box is arranged at the upper end of the rack, a first air hole is formed in the top of the filter box, and a second air hole is formed in the side wall of the filter box; the lower end of the filter box is provided with a blanking port, the first air hole is communicated with an air inlet of the vacuum pump through a first pipeline, the recycling box is arranged on the rack and located below the filter box, the upper end of the recycling box is provided with a feeding port, the feeding port corresponds to the blanking port, and the vacuumizing counterweight cover is provided with a third air hole. The second air hole is communicated with the third air hole through a second pipeline, a feeding hole is furthe