Electric furnace and method for melting and reducing iron oxide-containing iron raw material

An electric furnace comprising:

• a plurality of upper electrodes;
• three or more bottom-blowing tuyeres;
• a mechanical stirrer equipped with an impeller;
• and
• a charging device which injects an iron oxide-containing iron raw material,
• wherein the three or more bottom-blowing tuyere are disposed such that, when a straight line orthogonal to a shortest line segment among line segments connecting each of centers of the plurality of upper electrodes and a center of the impeller, respectively, is drawn at a point closer to the impeller between two points that equally divide the shortest line segment into three parts in a plan view,
• centers of at least three bottom-blowing tuyeres among the three or more bottom-blowing tuyeres are present closer to the plurality of upper electrodes than the orthogonal straight line.