The invention discloses an
oxygen-enriched
smelting furnace for treating a low-grade multi-
metal material. The
oxygen-enriched
smelting furnace comprises a furnace
hearth, a
copper water jacket furnace wall and a hanging-type steel
water jacket which are sequentially arranged from bottom to top, wherein a steel structural frame is arranged on the peripheries of the furnace
hearth, the
copper water jacket furnace wall and the hanging-type steel water jacket, the furnace
hearth is positioned on a skeleton of the bottom surface of the steel structural frame, a
fixed frame for connecting with the steel structural frame is arranged on the outer wall of the
copper water jacket furnace wall, and the hanging-type steel water jacket is hung at the upper end of the steel structural frame; the copper water jacket furnace wall comprises a plurality of
layers of copper water jackets, and the bottom of the copper water jacket at the bottommost layer is provided with an
oxygen spray nozzle and a
punching slagging device; the upper end of the hanging-type steel water jacket is provided with a
flue hole and a charging hole which are communicated with the hanging-type steel water jacket and used for discharging
smoke and charging. The left and right deformation of the water jacket is avoided due to the structure of the hanging-type steel water jacket, the defects that a
slag hole water jacket is prone to leak, and the furnace shutdown is needed during the replacement of the water jacket are overcome due to the structure of the
punching slagging device, and the safety using property of the oxygen-enriched
smelting furnace is improved. The oxygen-enriched smelting furnace has the characteristics that during smelting, the amount of
flue gas is small, little heat is taken away by
flue gas, the temperature of a
molten pool is high, and lead and
zinc are easy to volatile.