Sampling device for waste gas treatment

The utility model discloses a sampling device for waste gas treatment, which relates to the technical field of waste gas treatment and comprises a base, an exhaust chamber is fixedly connected to the upper surface of the base, a gas inlet chamber is detachably mounted at one end, far away from the base, of the exhaust chamber, and a waterproof cover is detachably mounted at one end, far away from the exhaust chamber, of the gas inlet chamber. A supporting plate is fixedly connected to the inner wall of the exhaust chamber, a supporting spring is fixedly connected to the upper surface of the supporting plate, a mounting device is arranged at the other end of the supporting spring and comprises a mounting plate, and the mounting plate is fixedly connected to the end, away from the supporting plate, of the supporting spring; four connecting rods are fixedly connected to the side face of the mounting plate, sliding blocks are fixedly connected to the ends, away from the mounting plate, of the four connecting rods