NOVELTY - Biological dry treatment device comprises a pile body temperature sensor, a temperature probe, a humidity probe, a venting machine, an air draft, a spiral blade, a hole plate and a wind deflector. The temperature probe and the humidity probe are extended to the upper part of the treatment device. The pile body temperature sensor is extended to the treatment device from the upper part of the shell. The bottom of the treatment device is a double-layered shell, where the inner layer is a hole plate. An air chamber is arranged between two layers. The air chamber is equipped with a wind deflector.    USE - The biological dry treatment device is useful for urban domestic dehydrated sludge.    ADVANTAGE - The biological dry treatment device adopts a time-temperature coupling control system and a humidity control air draft device to realize the oxygen supply by the venting machine and an automatic control of humidity regulation, thus the piled material in the biological dry treatment device reaches the best state of high oxygen content and even air distribution, where the fermented material can quickly perform the aerobic fermentation.    DETAILED DESCRIPTION - Biological dry treatment device comprises a pile body temperature sensor, a temperature probe, a humidity probe, a venting machine, an air draft, a spiral blade, a hole plate and a wind deflector. The temperature probe and the humidity probe are extended to the upper part of the treatment device. The pile body temperature sensor is extended to the treatment device from the upper part of the shell. The bottom of the treatment device is a double-layered shell, where the inner layer is a holed plate. An air chamber is arranged between two layers. The air chamber is equipped with a wind deflector. The venting machine communicates with the air chamber at the bottom of the treatment device. A draught fan communicates with the upper part of the treatment device. The spiral blade is installed in the center of the treatment device via a rotating shaft of an agitator. The top of the shell is provided with a feed opening, where one side of the bottom of the shell is provided with a discharging opening.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the biological dry treatment device.