Flue gas purification device with protection structure

The utility model discloses a flue gas purification device with a protection structure, which comprises a flue gas purification cylinder, a flue gas inlet pipe is inserted into the side wall of the flue gas purification cylinder, the flue gas inlet pipe is connected with an external flue gas conveying pipeline, a flue gas exhaust pipe is inserted into the upper wall of the flue gas purification cylinder, and a spraying mechanism is arranged in an inner cavity of the flue gas purification cylinder. A protection mechanism is installed on the side wall of the spraying mechanism, the spraying mechanism comprises at least four inclined plates, cavities and atomizing nozzles, the inclined plates are installed on the inner side wall of the flue gas purification barrel and arranged in the inner cavity of the flue gas purification barrel in a staggered mode, the cavities are formed in the inclined plates, the atomizing nozzles are installed on the lower walls of the inclined plates, and the atomizing nozzles are arran