The invention relates to a novel pneumatic glass-lined stirring device. The novel pneumatic glass-lined stirring device comprises a reaction kettle tank body, a reaction kettle upper cover, a stirrer, an upper end block, a discharging pipe, a discharging main pipe and a gas-liquid separating pipeline, wherein the reaction kettle upper cover is arranged on the upper side of the reaction kettle tank body; the upper end block is arranged at the middle position of the upper part of the reaction kettle upper cover; the stirrer is arranged inside the reaction kettle tank body and is rotationally connected with the upper end block; the discharging pipe and the discharging main pipe are sequentially arranged below the reaction kettle tank body; the gas-liquid separating pipeline is arranged between the discharging pipe and the discharging main pipe. According to the novel pneumatic glass-lined stirring device disclosed by the invention, the reaction kettle is heated inside the reaction kettle by using high-temperature gas, so that an internal temperature field of the reaction kettle becomes uniform, and the reaction efficiency is improved. Stirring blades at the lower end of the stirrer can rotate along the direction vertical to the axial direction of the stirrer while the stirrer rotates along the axial direction of the stirrer, so that the mixing efficiency is improved, and bottom sediments are avoided.