Converter lining structure

The utility model relates to a steelmaking converter, and specifically discloses a converter lining structure. The converter lining structure comprises a furnace hearth, a melting tank, a furnace body, a furnace cover, a tap hole and a furnace mouth; the furnace hearth is an annular masonry structure formed by stacking wedged bricks in turns; the periphery of the melting tank is an arc masonry structure; an arc range of the melting tank is 40-80 degrees; a triangular zone is formed on a joint of the melting tank and the furnace hearth; the triangular zone is an annular masonry structure; the arc masonry structure of the melting tank extends to the lower part of the furnace body; the furnace cover adopts a no-stair inner furnace cover surface formed by stacking identical slope furnace cover bricks; an angle of the slope is 30-60 degrees; a material ramming layer is arranged at the periphery of the tap hole; the tap hole forms an integrated structure by the material ramming layer; and the furnace cover uses an insulating paint as an insulating layer. By adopting the structure, the steelmaking converter can be used for steel production more than 10000 furnaces, so that the service life is greatly prolonged.