Gas cooler with built-in gas-water separator

The utility model discloses a built-in gas cooler, which comprises a gas-water separator. The gas-water separator is formed by arranging a plurality of oblique grating plates in an equidistant and parallel way, wherein the front ends of the grating plates are downwards curled to form grooves, and the grating plates are divided into straight-line parts and bent parts. A working principle is that after cooled gas flows to the gas-water separator, due to the action of the oblique grating plates, moisture in the gas is coagulated into water drops on the surfaces of the grating plates, the rest gas enters a next stage through the grating plates, and the coagulated water drops flow out along the grating plates. As the front ends of the grating plates are curled, the time when the gas passes through the grating plates is greatly prolonged, so that the moisture in the gas has more time to be coagulated on the surfaces of the grating plates and a better gas-water separation effect can be achieved. The built-in gas coo