Rotary autoclaved drying kettle

A rotary autoclaved drying kettle comprises a horizontally arranged cylindrical housing, is equipped with a rotary supporting wheel group and a rotary driving mechanism, and is characterized in that an air inlet main pipe is arranged at one end of the housing; a discharging air pipe is arranged at the other end of the housing; a rotary joint A sleeves the air inlet main pipe; an air inlet run pipe and condensed water discharging pipes are mounted on the rotary joint A; a material holding tank is mounted in the housing; one end of an interlayer between the housing and the material holding tank is communicated with the air inlet main pipe; an air inlet is formed in the front end of the material holding tank; a discharging air opening is formed in the rear end of the material holding tank and is communicated with the discharging air pipe; a feed pipe mounted on the housing extends into the material holding tank; a sealing cover is arranged at the outer end opening of the feed pipe in a matched manner; a siphon p