Gas flow monitoring device in drilling ice melting and hole penetrating process

The invention discloses a gas flow monitoring device in a drilling ice melting and hole penetrating process, which comprises a sealing device, a conveying device, a gas-liquid separator, a flow measuring device and a heat conduction pipe, and is characterized in that the conveying device penetrates through a through hole reserved in the sealing device so as to penetrate into a drill hole to output high-temperature liquid, so that ice in the drill hole is melted to generate a gas-liquid mixture; the gas-liquid mixture is separated into gas and liquid by the gas-liquid separator, the gas is measured independently through the flow measuring device, and the heat conduction pipes are embedded into the deep layer of the ground and are evenly arranged around the sealing device. According to the embodiment of the invention, the aim is fulfilled by sealing the drill hole, separating the overflowed gas and liquid and then independently monitoring the gas flow, meanwhile, the heat of the underground deep layer is transf