Oxygen-enriched side-blown smelting furnace for complicated and unworkable gold concentrate

The invention discloses an oxygen-enriched side-blown smelting furnace for complicated and unworkable gold concentrate. The smelting furnace is divided into a heating zone and a reaction zone; a cooling water jacket is arranged all around the side wall of the reaction zone, and the cooling water jacket is divided into three or more layers and can be detached independently; the three-layer water jacket on the side wall of the reaction zone is provided with two rows of air ports, high concentration oxygen-enriched air is fed into the lower air ports to react with materials during working, and the upper air ports adjust the produced smoke gas to be at oxygen excess state; compact high-temperature resistant heat insulation coating is embedded in the cooling water jacket and the contact zone of the smelting furnace, and a layer of 5-10mm high-temperature resistant heat insulation material is coated for heat insulation on the outer layers of the flame retardant coatings inside and at the top of the smelting furnace