Pipeline connectivity surveying device and method based on wifi

The invention discloses a wifi-based pipeline connectivity surveying device and method. The wifi-based pipeline connectivity surveying device comprises a handle; a U-shaped connecting plate is fixedly connected to the bottom end of the handle, a first rotating shaft is rotatably connected to the inner wall of the connecting plate, an electric wire is wound around the first rotating shaft, the other end of the electric wire is electrically connected with a surveying terminal, and a wifi networking communication module is arranged in the surveying terminal; the top surface of the surveying terminal is fixedly connected with a floating wifi antenna assembly; the surveying terminal penetrates through the manhole cover opening hole to reach the inside of the well pipe, then the first rotating shaft is rotated, the electric wire is loosened on the first rotating shaft, at the moment, the surveying terminal is lowered until the surveying terminal makes contact with water in the well pipe, and then the pipeline conne