Device for producing partially reduced iron

Provided is a device for producing partially reduced iron, with which partially reduced iron having a prescribed reduction ratio can be produced efficiently. The present invention is equipped with: CO sensors (71a-71d) that detect the carbon monoxide concentration in an exhaust gas (91); an O2 sensor (72) that detects the oxygen concentration in an exhaust gas (93); an exhaust gas circulation device (50) that adjusts the circulating amount of the exhaust gas (93) supplied to a reduction furnace main body (32), and an air feed device (60) that adjusts the amount of air (94) that being fed; and a control device (90) that controls these devices (50, 60). The control device controls the devices (50, 60) on the basis of the carbon monoxide concentration in the exhaust gas as detected by the CO sensor and the oxygen concentration in the exhaust gas as detected by the O2 sensor. 提供种能够高效率制造规定的还原率的部分还原铁的部分还原铁制造装置。具备如下：检测废气(91)的氧化碳浓度的CO传感器(71a～71d)；检测废气(93)的氧浓度的O传感器(72)；调节向还原炉主体(32)送给的废气(93)的循环量和空气(94)的送给量的废气循环装置(50)和空