Horizontal detection device for constructional engineering

The utility model provides a horizontal detection device for constructional engineering, which comprises a shell, a horizontal detection mechanism is arranged on the outer wall of the shell, a bidirectional screw rod is rotatably connected in the shell along the horizontal direction through the matching of a bearing and a shaft seat, one end of the bidirectional screw rod penetrates through the shell, and a driving component is arranged at the end of the bidirectional screw rod; moving blocks are in threaded connection with the two threaded sections, with different rotating directions, of thetwo-way lead screw respectively, nuts matched with the corresponding threaded sections of the two-way lead screw are arranged on the moving blocks respectively, and horizontal guide assemblies matchedwith the moving blocks are arranged in the shell. Supporting legs are arranged at the bottom of each moving block in parallel at intervals, each supporting leg penetrates through the bottom of the shell in the vertical direct