The invention provides a combined burner for gasifying pulverized coal. The combined burner comprises a central tube, wherein an ignition fuel gas inlet is formed in an inlet side of the central tube, and the central tube is sequentially externally sleeved with an ignition air sleeve, a first cooling water sleeve, an oxidant sleeve, a second cooling water sleeve, a pulverized coal sleeve and a third cooling water sleeve; an outlet of the ignition air sleeve extends outwards relative to an outlet of the central tube to define a first premixing region for mixing ignition fuel gas with ignition air; an outlet of the pulverized coal sleeve extends outwards relative to an outlet of the oxidant sleeve to define a second premixing region for mixing an oxidant with pulverized coal; and the aperture of one end, close to the outlet, of the oxidant sleeve gradually shrinks, and spinning disks are circumferentially arranged on the inner wall at an inlet of the oxidant sleeve. According to the combined burner for gasifying the pulverized coal, the uniform gas-solid mixing of the oxidant and the pulverized coal is realized, so that the pulverized coal in a pulverized coal gasification furnace can be stably burnt, and the carbon conversion rate is increased.