Dust collection cover for iron grate notch of large closed direct-current electric furnace

The utility model belongs to the technical field of metal smelting, and particularly relates to a dust collection cover for an iron grate notch of a large closed direct-current electric furnace, which is used for solving the problems that a large amount of smoke dust is generated in the discharging process of molten iron, harmful substances such as SO2 and smoke dust particles are contained in the smoke dust, the environment is polluted, and the health of operators is harmed. The dust collection device comprises a smoke dust pipeline, a dust collection cover is arranged at one end of the smoke dust pipeline, and the dust collection cover is arranged above a molten iron chute and is as long as the molten iron chute; and a fan capable of adjusting wind power is arranged in the smoke dust pipeline. According to the utility model, the problem of smoke escape in the molten iron discharge process of the closed direct-current electric furnace is effectively solved, and meanwhile, the collected smoke and SO2 can be f