Tail gas recycling device for smelting furnace

The invention discloses a smelting furnace tail gas recycling device, and relates to the technical field of tail gas utilization. A smelting furnace tail gas recycling device comprises a furnace body and a water storage tank, a connecting section is machined on one section of the outer side of the furnace body, a conveying pipe is fixed to the connecting section through a connecting screw, a gas collecting port is machined in the tail end of the conveying pipe, a sealing ring is installed between the conveying pipe and the connecting section, and a filter screen is installed in the gas collecting port. A water storage tank is placed at the bottom of the inner side of the boiler body, a water inlet pipe and a water outlet pipe are installed at the two ends of the water storage tank respectively, a switch pipeline is installed above the boiler body, a discharge outlet is connected to the upper portion of the switch pipeline, a ball valve is installed in the switch pipeline, a bearing is embedded in the inner wa