Perpendicularity detection device

The utility model relates to the technical field of constructional engineering detection equipment, and aims to provide a verticality detection device. The verticality detection device is simple in structure, does not need cooperation of multiple persons, saves labor, and can be fixed on a template to realize continuous detection. The perpendicularity detection device comprises a mounting seat, a connecting rod, a rotating seat, a light-emitting part and a vertical cone, one end of the connecting rod is connected with the mounting seat, and the connecting rod is arranged in the horizontal direction; the rotating seat is rotationally connected with the other end of the connecting rod; the light-emitting part is arranged on the rotating seat; and the vertical cone is arranged at the bottom end of the rotating seat. The problems that in the prior art, when perpendicularity detection is carried out through cooperation of a line pendant or an infrared detector and a measuring scale, cooperation of multiple persons