The invention relates to an electric furnace for accommodating and carbonizing hot blast furnace slag and an equipment technology thereof. Waste accumulation of a byproduct (titanium-containing) blast furnace slag generated by blast furnace iron making brings great harm to the ecological environment. A furnace body of the electric furnace provided by the invention is covered by a water-cooled furnace cover, a conductive cross arm is arranged at the top of the water-cooled furnace cover, a furnace cover lifting and rotating device is arranged at the side of the water-cooled furnace cover, and an electrode lifting device is fixedly connected with a lifting frame; the furnace body of the electric furnace is placed on a tilting platform of a smelting station, and a hydraulic system provides power to the tilting platform; a slag discharging vehicle is arranged at a slag outlet of the furnace body of the electric furnace; a transformer transmits power to the furnace burden in the furnace body of the electric furnace through a high-current line and the conductive cross arm; a slag receiving station is provided with a furnace body flat wagon, the furnace body of the electric furnace is lifted by a lifting appliance to the furnace body flat wagon of the slag receiving station, and the blast furnace slag is dumped into the furnace body of the electric furnace by a cinder ladle vehicle. The electric furnace can effectively utilize the afterheat of the blast furnace, has the effects of saving energy and reducing consumption, has a special furnace type structure, can perform secondary high-temperature smelting on the blast furnace slag, and can comprehensively treat the blast furnace slag.