A remelting plant for metals comprising - one or several melting sites, which for the most part are arranged in the underground in a foundation of the remelting plant, with one crucible each; - a furnace portal comprising a first and a second vertical column, which are connected on their upper end with two opposing sides of a horizontal connecting frame and along their height with at least one further frame formed by two brackets, wherein the furnace portal with the first vertical column is connected with the foundation such that it can be rotated, and with the second vertical column, the lower end of which is provided with a drive and at least one wheel, can be moved on a curved rail, so that the furnace portal can make a swiveling movement over the one or several melting sites; - a one-piece furnace chamber, which is open on its lower side and which can be vertically moved within the frame being formed by the two brackets; - openings, which are arranged on the sides of the connecting frame, which are not connected with the vertical columns; - a plurality of locking elements, which are provided on the brackets and which are able to fix the furnace chamber in the vertical; - a balance, which with its lower side is connected with the upper side of the furnace chamber; - an electrode rod supporting structure comprising two columns with variable lengths, a lower plate being attached on their lower end and an upper plate being attached on their upper end, wherein the lower plate is connected with the balance and the upper plate is engaged with the openings of the connecting frame and can be moved vertically within them; and - an electrode rod, which runs through the lower plate and the upper plate, with a coaxial electrode rod drive, which is fastened on the upper plate, wherein the electrode rod comprises an outer tube, an inner tube being movable therein and a spindle being arranged in the inner tube, and the electrode rod drive drives the spindle inside of the electrode rod. - one or several melting sites, which for the most part are arranged in the underground in a foundation of the remelting plant, with one crucible each; - a furnace portal comprising a first and a second vertical column, which are connected on their upper end with two opposing sides of a horizontal connecting frame and along their height with at least one further frame formed by two brackets, wherein the furnace portal with the first vertical column is connected with the foundation such that it can be rotated, and with the second vertical column, the lower end of which is provided with a drive and at least one wheel, can be moved on a curved rail, so that the furnace portal can make a swiveling movement over the one or several melting sites; - a one-piece furnace chamber, which is open on its lower side and which can be vertically moved within the frame being formed by the two brackets; - openings, which are arranged on the sides of the connecting frame, which are not connected with the vertical columns; - a plurality of locking elements, which are provided on the brackets and which are able to fix the furnace chamber in the vertical; - a balance, which with its lower side is connected with the upper side of the furnace chamber; - an electrode rod supporting structure comprising two columns with variable lengths, a lower plate being attached on their lower end and an upper plate being attached on their upper end, wherein the lower plate is connected with the balance and the upper plate is engaged with the openings of the connecting frame and can be moved vertically within them; and - an electrode rod, which runs through the lower plate and the upper plate, with a coaxial electrode rod drive, which is fastened on the upper plate, wherein the electrode rod comprises an outer tube, an inner tube being movable therein and a spindle being arranged in the inner tube, and the electrode rod drive drives the spindle inside of the electrode rod.