Instantaneous high-pressure gas cannon

The invention discloses an instantaneous high-pressure gas cannon. A booster pump, a high-pressure pipe, an electric-control trigger valve, a prepressing pipe and a rupture disk assembly in the instantaneous high-pressure gas cannon are sequentially connected. The booster pump is connected with an air compressor and a gas cylinder. The high-pressure pipe is connected with a pressure gauge and a vent valve. The air compressor drives the booster pump to compress gas which is output from the gas cylinder, the compressed gas is controlled to enter the high-pressure pipe and the prepressing pipe by opening or closing the electric-control trigger valve according to indicated values of the pressure gauge, prepressing of the rupture disk assembly and burst pressure loading are achieved, and instantaneous high-pressure gas is obtained through rupture of the rupture disk assembly. The instantaneous high-pressure gas cannon has the instantaneous high-pressure gas output capacity, the maximum output pressure can be 200 M