The invention discloses a vertical roasting stove. The vertical roasting stove comprises a vertical stove body, wherein a rotary table is mounted at the bottom of the stove body and is connected with a rotation driving device; a wind distributing splitter is mounted on the rotary table; discharging channels are arranged on the side surface of the bottom of the stove body; inlets of the discharging channels are positioned in the outer side of the rotary table; unloading valves are mounted on the discharging channels; baffles are mounted on the side wall of the stove body around the wind distributing splitter, and are positioned at the inlets of the discharging channels; the lower ends of the baffles are compactly abutted against the top surface of the rotary table; wind inlet pipes are arranged at the bottom of the stove body; wind distributing holes are formed in the wind distributing splitter, and are communicated with wind inlet pipes. The vertical roasting stove disclosed by the invention has the advantages that the vertical roasting stove can perform destructive distillation and calcination on briquettes or sludge pellets, and perform drying and cooling at the same time; the whole production process can be performed continuously, so that the production efficiency is high; when the briquettes are destructively distilled, the situation that coal gas is mixed with air can be effectively avoided.