A bath smelting device for producing crude antimony from antimony-oxide-contained materials comprises an oxygen-enriched side-blown reduction bath smelting furnace, a waste heat boiler, an electric dedusting device and a bag dedusting deice. The furnace top of the oxygen-enriched side-blown reduction bath smelting furnace is provided with a feeding port. Horizontal oxygen-enriched air spray guns are arranged on copper water jackets on the two sides of a furnace body of the oxygen-enriched side-blown reduction bath smelting furnace, and the top ends of the oxygen-enriched air spray guns are flush with the inner walls of the water jackets. Spray guns used for allowing gas-solid mixtures to be sprayed therein are arranged on the two sides of the furnace body or the furnace top of the oxygen-enriched side-blown reduction bath smelting furnace. A crude antimony siphon chamber is arranged at the front end of the oxygen-enriched side-blown reduction bath smelting furnace. A slag siphon chamber is arranged at the rear end of the oxygen-enriched side-blown reduction bath smelting furnace. Discharging ports are formed in the two ends of the furnace body. The waste heat boiler, the electric dedusting device and the bag dedusting deice are sequentially arranged behind the furnace body of the oxygen-enriched side-blown reduction bath smelting furnace. According to the bath smelting device for producing the crude antimony from the antimony-oxide-contained materials, the adaptability to raw materials is high, the operation energy consumption is low, the device is used for crude antimony production, the direct recovery rate and recovery rate of antimony are high, the labor intensity is low, the production is clean and environmentally friendly, production cost is low, and economic benefits are good.