Intelligent monitoring and early warning device for drainage pipeline

The intelligent monitoring and early warning device comprises a drainage pipeline, a base is installed at the lower end of the interior of the drainage pipeline, a telescopic adjusting pipeline is fixedly connected to the middle of the upper end of the base, and the upper portion of the telescopic adjusting pipeline is movably sleeved with an upper limiting sleeve; and the outer side of the upper limiting sleeve is fixedly connected with an outer sealing sleeve. According to the intelligent monitoring and early warning device for the drainage pipeline, by rotating a threaded sleeve, the threaded sleeve and a second threaded rod do threaded motion, the threaded sleeve carries the second threaded rod to move outwards, the second threaded rod drives a positioning auxiliary plate to be tightly attached to the inner wall of the drainage pipeline, and after the positioning auxiliary plate extends outwards, the distance is adjusted; and the position of the positioning auxiliary plate in the drainage pipeline is adju