Embedded device capable of adjusting perpendicularity of foundation bolt of tower crane foundation

The utility model relates to the field of tower crane foundation structures, in particular to a pre-embedding device capable of adjusting the perpendicularity of a foundation bolt of a tower crane foundation, which comprises a mold assembly, a foundation bolt device and a perpendicularity adjusting device, the mold assembly comprises four mold bottom plates, and the four mold bottom plates are connected through a mold connecting pipe to form a square; the number of the perpendicularity adjusting devices is four, and each perpendicularity adjusting device comprises an adjusting frame and four sets of adjusting sleeves. The four sets of adjusting sleeves are provided with two adjusting lead screws which are perpendicular to each other and fixed to the outer walls of the adjusting sleeves. The adjusting lead screw penetrates through the adjusting frame to be connected in a sliding mode, and the distance between the adjusting lead screw and the adjusting frame is adjusted and fixed through a second nut and a seco