Heat accumulating type high-temperature dust melting and removing device of electric smelting magnesium smelting furnace and using method thereof

The invention relates to the field of heat accumulators and dust removers, in particular to a heat accumulating type high-temperature dust melting and removing device of an electric smelting magnesium smelting furnace and a using method thereof. An air purification chamber, a filtering dust removal heat accumulator and a heat exchanger are sequentially arranged in a heat preservation machine shell of the device from top to bottom, and the filtering dust removal heat accumulator and the heat exchanger are communicated through a hot air pipeline. The filtering dust removal heat accumulator is a fused magnesia heat accumulator plate vertically arranged in a dust removal filter, the air purification chamber is arranged above the filtering dust removal heat accumulator, and the air purification chamber is connected with an outlet of the heat exchanger through a pipeline; the heat preservation machine shell is provided with an air inlet in the lower left side of the filtering dust removal heat accumulator, the air