Abstract: A new-type manganese dioxide reduction furnace was designed according to production needs of manganese products and the researches on the existing furnaces.Furnace structure：columnar shape，vertical，multiple channels，the combustion chamber separated from reducing room，and air isolated cooling way；Corollary equipment：advanced and eco-friendly gas mixing combustion system；furnace temperature digital display；and automatic feeding and discharging.In addition，the analysis and test methods of manganese dioxide reduction roasting were confirmed.Characteristics：low cost，low labor intensity，and little environmental pollution.Reduction rates all over 94% when the new-type furnace was applied in reduction roasting manganese dioxide of different origins.

Key words: manganese dioxide, reduction furnace, design, application