Blasting safety protection device for mining engineering

The blasting safety protection device for mining engineering comprises a protection plate, connecting blocks are fixedly connected to the top and the bottom of the left side of the protection plate, connecting grooves matched with the connecting blocks for use are formed in the top and the bottom of the right side of the protection plate, and a movable groove is formed in the right side of an inner cavity of the protection plate. An inner cavity of the movable groove is fixedly connected with a double-shaft motor, and output shafts at the top and the bottom of the double-shaft motor are fixedly connected with threaded rods. A connecting block is inserted into a connecting groove, then a double-shaft motor is started to drive two threaded rods to rotate, the threaded rods drive threaded cylinders to be inserted into clamping grooves, therefore, two protection plates can be assembled, the protection area of the protection device is enlarged, a user can conveniently move the protection plates through the arrange