Water environment monitoring well protection device

The invention belongs to the technical field of water quality monitoring, and particularly relates to a water environment monitoring well protection device which comprises a covering cover plate, a rotating motor is arranged at the bottom end of the covering cover plate, a connecting plate is arranged on the outer side of a fixing shaft of the rotating motor, and two sets of drawing sliding grooves are formed in the connecting plate. Rotating cover plates and adjusting protection parts are arranged in inner cavities of the two sets of drawing sliding grooves correspondingly, a fixed vertical plate is arranged at the bottom end of the rotating shaft of the rotating motor, buffering supporting parts are arranged on the left side and the right side of the fixed vertical plate correspondingly, movable climbing parts are arranged at the front end and the rear end of the fixed vertical plate correspondingly, through holes are formed in the upper end and the lower end of the covering cover plate, and air vents are a