Flue gas purification device fault detection equipment

The utility model discloses fault detection equipment for a flue gas purification device, which relates to the technical field of fault detection equipment and comprises an exhaust pipe arranged on the outer side of the purification device, a fixing block is fixedly arranged at the upper end of the outer side of the exhaust pipe, a vertical rod is arranged on an elastic sliding assembly in the fixing block, and a supporting plate is fixedly arranged at the top of the vertical rod. Smoke dust sensors are fixedly arranged at the two ends of the bottom of the supporting plate through electric push rods, the tail ends of the smoke dust sensors penetrate into the exhaust pipe, an insertion groove is formed in the lower end of the outer side of the exhaust pipe, the lower end of the vertical rod is fixedly sleeved with a rotating block, and an insertion positioning mechanism used for limiting the rotating position of the vertical rod is arranged between the rotating block and the insertion groove. According to the