The invention provides a garbage treatment furnace which comprises a furnace body, a first auxiliary mechanism and a second auxiliary mechanism; a first tail gas buffer chamber, a primary furnace chamber, an auxiliary furnace chamber, a second tail gas buffer chamber and a recycle gas buffer chamber; a first recycle gas guide pipe, a second recycle gas guide pipe and an exhaust pipe are mounted on the furnace body; the first auxiliary mechanism comprises a first gas dividing pipe, a second gas dividing pipe, a barrier block, a communicating pipe, a dehumidifying tank and a plurality of heat conducting pipes; a gas inlet pipe and a gas outlet pipe are mounted on the dehumidifying tank; the second auxiliary mechanism comprises a primary furnace feed inlet door, an auxiliary furnace feed inlet door, a first oxygen supply pipe, a second oxygen supply pipe, a first deslagging device and a second deslagging device. The garbage treatment furnace provided by the invention is convenient to use and excellent in garbage treatment effect, and a lot of garbage is simultaneously treated favorably.