Automatic powder material feeding device in high-pressure environment

The utility model discloses an automatic powder material feeding device in a high-pressure environment. The device comprises a high-pressure powder storing tank, a high-pressure air source, a control system, a first valve, a second valve, a measuring pipe, and a third valve. One end of the measuring pipe is connected with the high-pressure powder storing tank through the third valve, the second end of the measuring pipe is connected with an additionally-arranged downstream device through the second valve, and the third end of the measuring pipe is connected with the high-pressure air source through the first valve. The control system is connected with the first valve, the second valve and the third valve. The automatic powder material feeding device can continuously feed flow powder materials on a high-pressure condition, can accurate measure and control feeding amount, is free of equipment wear, and does not pollute downstream materials. Besides, the automatic powder material feeding device has the advantage