Rare and precious metal production and processing equipment

The utility model discloses rare and precious metal production and processing equipment which comprises a smelting furnace and supporting legs, and a heating box is arranged in the middle of the interior of the smelting furnace. The sealing cover, the outer heat preservation layer and the inner heat preservation layer are adopted, when rare and precious metals are processed, the feeding port can be sealed through the sealing cover when the rare and precious metals are heated through the device, heat overflow is avoided, energy consumption is reduced, meanwhile, heat generated in the heating box can be preserved through the inner heat preservation layer, and the energy consumption is reduced. According to the heat preservation device, the inner heat preservation layer is arranged to prevent a large amount of heat from overflowing, the situation that a large amount of energy is consumed to maintain the temperature is avoided, secondary heat preservation can be conducted on the heat overflowing from the inner he