Gas-liquid separation method with large treatment gas amount change

The invention discloses a gas-liquid separation method for treating gas with large change in gas volume, and belongs to the technical field of sulfur waste refining. Comprising the steps that a gas-liquid mixture enters a container from a mixture inlet and passes through an inlet baffle, a gas phase above the liquid level is discharged from a gas phase outlet after tiny liquid drops in the gas phase are captured through a mist catcher, liquid and solid are separated through a liquid-solid separator, the solid phase impacts a baffle plate of the liquid-solid separator, the solid phase downwards enters the bottom of the container and enters a solid collection area, and the liquid-solid mixture enters a liquid-solid separation area. A liquid phase subjected to liquid-solid separation passes through a liquid-liquid separator, light liquid and heavy liquid respectively move to upper-layer light liquid and lower-layer heavy liquid, the upper-layer light liquid is discharged from a light liquid outlet group, and the