The invention provides a gasification burner. The gasification burner comprises a gasifying agent sleeve, a pulverized coal sleeve and a water cooling sleeve, wherein a gasifying agent channel is formed in the gasifying agent sleeve; the gasifying agent sleeve is externally sleeved with the pulverized coal sleeve, and an annular pulverized coal channel is formed between the inner wall of the pulverized coal sleeve and the outer wall of the gasifying agent sleeve; the pulverized coal sleeve is externally sleeved with the pulverized coal sleeve, a water cooling channel is formed between the inner wall of the water cooling sleeve and the outer wall of the pulverized coal sleeve, and a first port of the water cooling sleeve is connected with an outlet end of the pulverized coal sleeve through an annular connecting plate; N pulverized coal inlets are formed in the outer wall of the pulverized coal sleeve, and N pulverized coal inlet pipes are communicated with the pulverized coal channel through the N pulverized coal inlets; a distance L from the central line of each pulverized coal inlet pipe to the central line of the gasifying agent sleeve is more than 0; an opposite end distance H from the center of each pulverized coal inlet to the outlet end of the pulverized coal channel is more than 0; and an included angle beta of the central line of each pulverized coal inlet pipe to the central line of the gasifying agent sleeve is more than 20 degrees and less than 100 degrees. The gasification burner is simple in structure, the uniform mixing of the pulverized coal and the gasifying agent is guaranteed, and the combustion efficiency and the carbon conversion rate of the pulverized coal are remarkably increased.