Safety supporting bracket for roadway at end of underground coal face

The utility model discloses a roadway safety supporting bracket at the end of an underground coal face, and relates to the field of underground coal mining. A roadway safety supporting support at the end of an underground coal face comprises a base, the top of the base is fixedly connected with a mounting support, the left side of the mounting support is fixedly connected with a connecting base, and the bottom of the connecting base is fixedly connected with the top of the base; a rear connecting rod and a front connecting rod are hinged to the two sides of an inner cavity of the connecting base through pin shafts. According to the roadway safety supporting support at the end of the underground coal face, firstly, the base is moved to a designated position, when the base needs to be fixed, firstly, the stepping motor is started through the external controller, the stepping motor drives the lead screw to start to rotate through the bearing seat, the lead screw rotates to drive the nut seat to move downwards, a