Industrial flue gas on-line monitoring alarm system

The utility model discloses an industrial flue gas on-line monitoring alarm system, which comprises a main body, a double-shaft motor is arranged in the main body, a fixing frame is sleeved on the side wall of the double-shaft motor, two ends of the fixing frame are respectively fixedly connected on the inner side wall of the main body, two output ends of the double-shaft motor are respectively provided with a connecting sleeve, and the connecting sleeves are connected with the main body. The side walls of the two connecting sleeves are each provided with two connecting frames, the other ends of the four connecting frames are each fixedly connected with a scraping plate, inclined plates are arranged at the positions, close to the lower ends, of the two inner side walls of the main body respectively, and an upper flange plate and a lower flange plate are arranged at the upper end and the lower end of the main body respectively. The double-shaft motor drives the connecting frames and the scraping plates at the