Gas-liquid separator

The utility model discloses a gas-liquid separator which comprises a separation tank, a gas guide tube and a liquid inlet, wherein the gas guide tube is arranged inside the separation tank; the liquid inlet is formed in the top of the separation tank; the gas guide tube is fixed inside the separation tank through a bracket; an exhaust hole, a liquid level control hole and a liquid discharge hole are sequentially formed in the separation tank from top to bottom; a protecting cap is mounted at the top of the gas guide tube; exhaust holes are formed in the lower part of the protecting cap and in the side surface of the protecting cap; a spiral baffle is mounted on the gas guide tube. According to the gas-liquid separator, due to the spiral baffle, the movement distance of slurry in the baffle is increased, and the friction distance of the slurry and the baffle is increased, due to a quadrihedron-shaped boss on the baffle, the gas and the liquid in the slurry can be sufficiently separated, the treated slurry barely contains combustible gas, the slurry discharged from the separation tank does not need vibration treatment any more, and the security standard is met.