The utility model discloses an oxygen feeder used for sintering with oxygen-rich air, and the oxygen feeder is composed of an air intake main pipe, air intake branch pipes, gas nozzles and control valves, the air intake main pipe is communicated with the air intake branch pipes, the air intake main pipe is provided with an oxygen inlet and a main pipe air-intake control valve, and the air intake branch pipes are provided with branch pipe air-intake control valves and the gas nozzles. The inlet is communicated with an oxygen conveying pipe, the air intake branch pipes are connected with the gas nozzles through a screw thread, and the space among the air intake branch pipes is 0.5 to 4.0; each gas nozzle is divided into an A section and a B section, and the A section and the B section are both V-shaped, wherein, the V-shaped angle of the A section closing to one end of the inlet is 0 to 90 DEG, the V-shaped angle of the B section closing to one end of the outlet is 0 to 150 DEG, and the A section is connected with the B section through a screw thread; the inclination angle between the central line of the gas nozzles and the vertical direction is 0 to 90 DEG, and the quantity of the gas nozzles is 10 to 200. The oxygen feeder has the advantages of reasonable structure, easy manufacturing and good using effect, and is applicable to the steel production field.