Antimony sulfide ore smelting method capable of absorbing CO2 and avoiding SO2 emission

The invention discloses an antimony sulfide ore smelting method capable of absorbing CO2 and avoiding SO2 emission at the same time. According to the method, a spray pipe is inserted in molten salt from the top/side/bottom of a hearth, CO2 gas with a certain pressure is sprayed in during smelting to stir the molten salt, mass transfer of molten salt ions is enhanced, and the smelting efficiency is improved; MeO in the molten salt reacts with sulfur in antimony sulfide under the action of CO2 to be converted into MeS, so that generation of SO2 is avoided; and in addition, the introduced CO2 is absorbed by the molten salt and is converted into carbonate. By means of the antimony sulfide ore smelting method capable of absorbing CO2 and avoiding SO2 emission, CO2 can be effectively captured and fixed, and the introduced CO2 can effectively stir a molten pool and promote the reaction, pollution caused by low-concentration SO2 during traditional antimony sulfide ore smelting can be avoided, high-grade refined antim