Should be punished. Article 118 of the Law on the Prevention and Control of Air Pollution: In violation of the provisions of this Law, catering service operators who discharge lampblack have not installed lampblack purification facilities, used lampblack purification facilities abnormally or taken other lampblack purification measures, and discharged lampblack beyond the emission standard, the supervision and management department determined by the local people's government at or above the county level shall order them to make corrections and impose a fine of not less than 5,000 yuan but not more than 50,000 yuan; Refuses to correct, shall be ordered to suspend business for rectification.