Self -adaptation is dynamic fluid level real -time supervision device in pit

The utility model belongs to the technical field of the monitoring of the oil well dynamic fluid level degree of depth, a self -adaptation is dynamic fluid level real -time supervision device in pit is disclosed, including the inside well head connecting device who is equipped with one end unclosed's first cavity the monitoring device of microphone and controller, and the gas compression device who is connected with the controller, the microphone is connected with the controller, it goes up just at first cavity to be fixed in well head connecting device, first cavity can communicate with wellmouth sleeve pipe's inside cavity, be equipped with all the admit air interface and the interface of giving vent to anger with first cavity intercommunication on the well head connecting device, and be connected with gas compression device's output and input respectively, when well head connecting device is connected with well mouth sleeve pipe, gas compression device extraction in first cavity isfollowed to the interface