The invention discloses an incineration tank for garbage. The incineration tank comprises an incineration tank body, a seal ring is fixedly arranged on the outer wall of the incineration tank body, aseal cover is arranged at the top end of the incineration tank body in a covering manner, the bottom end of the seal cover extends into the seal ring, a base plate is fixedly arranged on the bottom end of the incineration tank body, multiple air spraying heads are fixedly arranged at the bottom of the incineration tank body, air inlet pipes are fixedly arranged on the two sides of the incinerationtank body, an ash discharging cylinder is fixedly arranged at the bottom end of the incineration tank body, an ash blocking plate is movably arranged in the ash discharging cylinder, a smoke discharging pipe is fixedly arranged on one side of the top end of the seal cover, two screws are fixedly arranged on the top end of the seal cover, and a supporting plate is fixedly arranged on one side of the top end of the base plate. The tank is reasonable in structure, easy to operate, convenient to use, capable of improving the incineration efficiency, simple in whole device structure and low in manufacturing cost, and facilities small-area garbage incineration.