Submerged arc furnace base

The utility model relates to a submerged arc furnace base. The device comprises a base, telescopic air cylinders arranged on the base at equal intervals and arc-shaped surrounding plates fixed to thetelescopic air cylinders. The base comprises a bottom wall, a plurality of side walls arranged on the bottom wall at equal intervals and buffer connecting plates arranged between the side walls, the buffer connecting plates and the side walls are fixed through bolts, protruding parts arched outwards are arranged in the middles of the buffer connecting plates, and the inner diameters of the side walls are consistent with the inner diameter of the arc-shaped surrounding plate. According to the utility model, the side walls of the base are divided into the plurality of pieces, and the buffer connecting plates are connected among the plurality of pieces of side walls, so that when the furnace wall expands, the buffer connecting plates can play a role in buffering and eliminate the pulling force, thereby avoiding the p