The invention discloses a burner for incineration. The burner comprises a straight barrel-shaped body, a hot air inlet, an atomization steam inlet, a high-boiling substance inlet, a first-stage spray head, an atomizing mixing cavity, a second-stage spray head and a burner head; the hot air inlet is communicated with the straight barrel-shaped body in the radial direction, one end of the straight barrel-shaped body is sealed, an outlet of the first-stage spray head is arranged to be shaped like a circular ring, and an even number of through holes are formed in the first-stage spray head in the axial direction; the atomization steam inlet penetrates through the sealed end of the straight barrel-shaped body to be communicated with the through holes, and the high-boiling substance inlet penetrates through the sealed end of the straight barrel-shaped body to be communicated with an inner ring hole of the circular ring; one end of the atomizing mixing cavity is communicated with an outlet of the first-stage spray head, the other end of the atomizing mixing cavity is communicated with the burner head through the second-stage spray head, and the burner head is arranged in the center of an opening formed in the other end of the straight barrel-shaped body. The burner is used for incineration of media which are high in viscosity, difficult to atomize, high in calorific value and soluble or non-soluble in water.