Early warning device and method for predicting collapse of open pit coal mine mining area

The invention belongs to the technical field of coal mine safety protection, and particularly relates to an early warning device and method for predicting collapse of an open-pit coal mine mining area, the early warning device comprises an intrinsically-safe sound-light alarm unit and a plurality of intrinsically-safe detection units, and the intrinsically-safe detection units are installed on a slope of the open-pit coal mine mining area; each intrinsically safe detection unit comprises a positioning module, a vibration detection module, a displacement detection module, a soil temperature and humidity detection module, an alarm indicating lamp and a communication module I; each intrinsically safe detection unit is in communication connection with the intrinsically safe sound-light alarm unit; compared with the prior art, the system has the advantages that multiple detection means are adopted for simultaneous detection, and the accuracy of open pit coal mine mining area slope geological stability detection by