Small extinguisher dry powder filling machine is designed for small fire extinguisher filling to meet the filling of dry powder steel cylinders. The equipment model discloses a dry powder fire extinguisher filling machine device, which comprises a filling device, a moving bracket and a dry powder inlet isolation valve, the filling device is a cylindrical component body, and an air inlet is opened. And a plurality of air passages, the air inlet is connected with a plurality of air passages, and an air outlet is arranged at one end of the air passage and the filling cylinder, and an adjustable mobile bracket interface is arranged at the bottom of the filling device, and the movable moving bracket interface of the moving bracket and the filling device is provided. Spirally connected to each other, the dry powder inlet isolation valve is installed above the inlet of the filling device.