The invention relates to an anti-oxidation smelting furnace. The anti-oxidation smelting furnace comprises a furnace body, a smoke pipe and an electrostatic generator. The front end of the smoke ventcommunicates with the furnace body, the middle of the smoke vent is in an up-down twisting shape, and the lower end of the middle of the up-down twisting shape of the smoke vent is provided with two bending parts. The lower ends of the two bending parts are provided with dust removing grooves correspondingly, and the two dust removing grooves communicate with the two bending parts correspondingly.Filter screens are arranged in the two bending parts correspondingly, the two filter screens are arranged on the rear sides of the upper ends of the two dust removing grooves correspondingly, and theelectrostatic generator is connected with the two filter screens. A nitrogen generation device is arranged on one side of the furnace body, and the nitrogen generation device communicates with the interior of the furnace body through a pipeline. Compared with the prior art, the anti-oxidization smelting furnace is good in dust removing effect, deposition and removing of smoke dust are facilitated, the nitrogen generation device generates nitrogen, nitrogen is input into the furnace body, the oxygen content in the furnace body is lowered, and oxidization of a smelting material is avoided.