ANTI-CORROSION AIR PREHEATER CAPABLE OF SLOWING DOWN DUST ACCUMULATION

Disclosed in the present invention is an anti-corrosion air preheater capable of slowing down dust accumulation. The anti-corrosion air preheater comprises a housing, wherein an air inlet is fixedly arranged on a side wall of the housing, an air outlet is fixedly arranged on the side of the housing away from the air inlet, a flue gas through pipe is fixedly arranged on an inner side wall of the housing, a rotary assembly is arranged on an outer side wall of the flue gas through pipe, and a flue gas intake box is fixedly arranged on the top of the housing. In the present invention, a gas pressure plate is pushed by the flue gas pressure, so that the gas pressure plate is lowered; after the gas pressure plate is lowered, a rotary blade is rotated under the flowing effect of flue gas, so that a movable rod is rotated, and a scraper plate is then rotated; and when the scraper plate is rotated, dust that has accumulated on the top of a filter plate is cleared, so that the situation in which a large amount of flue