Liquid-gas separation device for gas circuit control system of drilling machine

The utility model relates to a liquid-gas separation device for a gas circuit control system of a drilling machine, which belongs to the technical field of liquid-gas separation devices. The liquid-gas separation device is composed of a shell, a gas feeding tube, a gas discharge pipe and a drain valve, wherein a partition plate is welded on the inner wall of the shell, and a gas passing gap is arranged between the partition plate and the inner wall of the shell. By using the liquid-gas separation device, moisture and impurities carried in high-temperature gas can be removed, and the liquid-gas separation effect is good, so that gas circuit control systems can satisfy the needs of low temperature environments, thereby ensuring the normal operation of the gas circuit control system of the drilling machines.