The main structure of combustion chamber of rotary selenium kiln and the selection of oil burner in Phase III of Guixi Smelter are described. The design feature of this combustion chamber is also introduced. 论述了贵溪冶炼厂三期工程蒸硒回转窑燃烧室的主要结构形式和燃油烧嘴的选型,阐述了该燃烧室的设计特点。