Dedusting and purifying system for byproduct chlorine in molten sodium chloride electrolysis production process

The utility model discloses a dust removal and purification system for byproduct chlorine in a molten sodium chloride electrolysis production process. The dust removal and purification system comprises a dust removal square box, a bag-type dust remover, a sulfuric acid packing washing tower, a chlorine pump and an acid mist catcher, wherein a gas outlet of the dust removal square box is communicated with a gas inlet of the bag-type dust remover through a pipeline, a gas outlet of the bag-type dust remover is communicated with a gas inlet of the sulfuric acid packing washing tower through a pipeline, a gas outlet of the sulfuric acid packing washing tower is communicated with a gas inlet of the chlorine pump through a pipeline, and a gas outlet of the chlorine pump is communicated with a gas inlet of the acid mist catcher through a pipeline. The system disclosed by the utility model adopts a principle of dry dust removal, greatly reduces the consumption of primary water and liquid caustic soda, has zero discha