The utility model discloses a glass furnace agitator, which comprises a linear track, a pipeline and a power device driving the pipeline to move back and forth on the linear track. A part of the pipeline is bent to form a mixing part, the mixing part is spiral, the pipeline is connected with a bearing through a support, the pipeline slides on the linear track through a bearing, and the power device is connected with the support through a connecting device, The mixing part extends into the glass furnace. Driven by the power device, the mixing part can stir the glass liquid in the furnace at a uniform speed to evenly heat the glass water in the furnace, so as to avoid the generation of glass reinforcement and improve the quality of glass. The spiral mixing part further increases the contact area between the pipe and the glass water in the glass furnace. On the one hand, the mixing part makes the mixing more uniform, The mixing efficiency is improved; On the other hand, the heat exchange area is increased, which is more convenient for the adjustment of kiln temperature, and the utility model has the advantages of simple structure and convenient use. The mixing barrel further comprises a barrel body, a feeding channel and a discharging channel; The upper surface of the mixing barrel has an opening surface, and the feed channel and discharge channel are arranged on the side wall of the mixing barrel and form a certain height difference; The stirring rod comprises a stirring main shaft and a plurality of stirring teeth installed on the main shaft; The stirring teeth are distributed on the main shaft according to the cross spiral structure. The stirring device for glass furnace can improve the quality of glass products and prolong the service life of the stirring device and the homogenizing tank by fully covering and protecting the homogenizing tank and improving the homogenizing stirring effect of molten glass.