Gaseous phase fracturing device

The invention provides a gaseous phase fracturing device. The device can be used for regulating pressure and blasting speed, and comprises a buffer, a snifting valve, a supercharging device, an inflation valve, a fracturing pipe, a sealing ring and a shear plate, wherein the inflation valve and the snifting valve are connected to two end parts of the fracturing pipe through seal threads; the inflation valve comprises a valve and an electrode, the valve is opened and closed to realize the filling of the gaseous phase fracturing device, the electrode is connected with a main hole, and high pressure sealing is realized through the threads and a sealing gasket; meanwhile, a high-performance insulating material and the inflation valve are insulated from each other. The gaseous phase fracturing device is used for fracturing a pre-mining coal bed, increasing fractures of the coal bed and driving gas adsorbed by the coal bed, so that the gas is convenient to extract and the coal and gas outburst risk is eliminated. During use, open fire is avoided, and open fire explosion generated by the traditional detonator and dynamite blast is avoided. The device has the characteristics of safety, high efficiency, simple management and the like.