Heat preservation cover for hot rolling transportation roller way

The utility model discloses a heat preservation cover for a hot rolling transportation roller way. The heat preservation cover comprises a cover body and a heat preservation cover, wherein the cover body extends in the extending direction of the roller way; the cover body is filled with the heat preservation layer, the heat preservation layer comprises heat preservation bags arranged above the conveying roller way, and the multiple heat preservation bags are sequentially arranged in the cover body in the horizontal direction in an abutting mode. According to the utility model, the plurality of heat preservation bags are arranged on the heat preservation cover above the hot-rolling transportation roller way and are sequentially arranged in the cover body in the horizontal direction in an abutting manner, the adjacent heat preservation bags are mutually attached, the heat conductivity is low, the heat loss is less, the disassembly and assembly are convenient, and when the hot-rolling transportation roller way c