To provide combustible waste thermal decomposition treatment equipment for thermally decomposing combustible wastes such as organic wastes, which improves treatment efficiency by preventing unevenness in thermal decomposition treatment of the combustible wastes, prevents back-flow of ash and residue after thermal decomposition, successively thermally decomposes the combustible wastes without supplying heat from a heat source for thermal decomposition but only by igniting a part of the combustible wastes at the beginning, thermally decomposes the combustible wastes without flaming up in thermal decomposition at all times, and simultaneously eliminates smell and smoke.

This combustible waste thermal decomposition treatment equipment includes: a thermal decomposition treatment chamber positioned on an intermediate spatial part of a vertical cylindrical body; a drying and thermal decomposition treatment standby chamber positioned in an upper spatial part of the vertical cylindrical body; the other room adjacent to the drying and thermal decomposition treatment standby chamber through an internal blocking wall; and an integrated deodorizing and smoke eliminating device composed of a group of heating honeycomb structure flue pipes for exhausting the smoke to an upper position communicated with a spiral flue while thermally decomposed again through the spiral flue formed on the same height position on a ceiling wall.