Waste gas treatment device in carbide slag rotary kiln system

The utility model relates to a waste gas treatment device in a carbide slag rotary kiln system. The waste gas treatment device comprises a waste gas box, a gas conveying port in the front end wall of the waste gas box is in gas supply butt joint with a waste gas recovery pipe, a heat supply base is installed at the bottom of the waste gas box, an inner cavity of the heat supply base communicates with a spraying box through a drainage pipe horizontally installed on the right end wall, spraying equipment is installed on the top wall in the spraying box, and a net plate is transversely arranged in the middle section of the spraying box. And a recycling channel is transversely formed in the bottom of the spraying box. According to the waste gas treatment device in the carbide slag rotary kiln system, waste gas can be guided into the waste gas box through cold and hot alternate airflow after being pre-collected, and the waste gas attachment collection procedure is completed in cooperation with a built-in spraying