Vacuum steel-making electric furnace

The invention provides a vacuum steel-making electric furnace which comprises a cabinet, a furnace body, a vacuum generating device, a smelting device and a funnel, the furnace body is installed at the top of the cabinet, a furnace cover is installed at the top of the furnace body, the vacuum generating device is arranged on one side of the cabinet, and the vacuum generating device communicates with the furnace body through a pipeline; after molten steel is poured to the inner side of the mold after steelmaking is finished, the mold poured with the molten steel can be automatically rotated to the position below the protection piece for cooling forming work, the empty mold can be rotated to the position coinciding with the axis of the furnace body while rotating is conducted, and the empty mold can be tightly pressed at the bottom of the furnace body after rotating in place; and therefore, when the cooling forming work of molten steel is carried out on the previous mold, the empty mold can carry out smelting a