Vertical sludge stirring device

The utility model relates to a vertical sludge stirring device which comprises a lower drill rod and an upper drill rod which are formed by splicing, a support is installed at the bottom of the lower drill rod, a stirring device assembly is connected to the lower portion of the support through a connecting plate, and a pile head assembly is connected to the bottom of the stirring device assembly. A blank cap is fixed to the top of the upper drill rod, a support welding assembly is installed above the blank cap, a concave clamping sleeve is arranged on the support welding assembly, and a shaft assembly penetrates through one end of the support welding assembly. The lower drill rod and the upper drill rod are connected to form a vertical structure, the two ends of the lower drill rod and the upper drill rod are connected with the support welding assembly and the support correspondingly, the external supporting device and the internal stirring device assembly are connected, and the drill rod of the vertical stru