Rotary hearth furnace, method for using same, and method for producing reduced iron-containing material and zinc-containing material

The invention provides a rotary hearth furnace, a method for using the same, and a method for producing a reduced iron-containing material and a zinc-containing material. The rotary hearth furnace isprovided with an annular hearth (11) with a combustor, a rotary hearth (12) rotating in the hearth (11), and an exhaust pipe (30) connected with the top wall (11a) of the hearth (11). When the width and the height of an in-furnace space (10) formed by the rotary hearth (12) and the hearth (11) are W and H respectively, H/W is 0.4 or more. 本发明提供转底炉及其使用方法、以及还原铁含有物和含锌物的制造方法。转底炉具备：具有燃烧器的环状的炉膛(11)、在炉膛(11)的内部旋转的旋转炉床(12)、以及与炉膛(11)的顶壁(11a)连接的排气管(30)。将由旋转炉床(12)和炉膛(11)构成的炉内空间(10)的宽度和高度分别设为W和H时，H/W为0.4以上。