Dust cleaning device for dust collection system at upper part of electrolytic bath

The utility model discloses a dust cleaning device for a dust collection system at the upper part of an electrolytic bath. The dust cleaning device comprises a bath cover and a flue gas pipeline, a flue gas pipeline is connected to the upper part of the tank cover, and the tank cover is used as a supporting foundation; the U-shaped frame is connected to the upper portion of the interior of the flue gas pipeline, a toothed plate is connected to the upper portion of the interior of the U-shaped frame, a gear is connected to the upper portion of the toothed plate in a meshed mode, the driving motor is connected to the inner circumferential face of the annular scraper, and the annular scraper is connected to the interior of the flue gas pipeline in a clamped mode. According to the dust cleaning device for the electrolytic bath upper dust collection system, a toothed plate is driven by a driving motor to rotate, then an annular scraper moves along the inner wall of a flue gas pipeline, the cleaning efficiency can