Copper bar smelting equipment

The utility model discloses copper bar smelting equipment which comprises a smelting furnace, a supporting bottom plate fixedly connected to the lower surface of a molten slag collecting box, an air bellow fixedly connected to the surface of the supporting bottom plate, a fan arranged on the rear surface of the air bellow, a semiconductor refrigerator arranged on the left side face of the air bellow, and an auxiliary air inlet pipe arranged between the right side of the air bellow and the smelting furnace. A valve is arranged on the surface of the auxiliary air inlet pipe, and a flexible air outlet pipe is arranged on the front surface of the air bellow. The fan, the air box, the flexible air outlet pipe, the auxiliary air inlet pipe and the valve are arranged, the fan and the semiconductor cooler work in a matched mode, the valve is closed, the flexible air outlet pipe can blow cold air forwards, and therefore workers in the high-temperature environment can feel more comfortable in the working process; and b