Multifunctional anti-falling system of drilling equipment

The invention provides a multifunctional anti-falling system for drilling equipment. The multifunctional anti-falling system comprises the drilling equipment, a drill rod, a drill bit, a supporting device and an anti-falling device. The drilling equipment is fixedly connected with the supporting device, the anti-falling device is fixedly connected with the drill rod, the drill rod is connected with the drilling equipment, and the drill bit is fixedly connected with the drill rod. The supporting device comprises a supporting plate and a connecting rod, one end of the connecting rod is riveted with the drilling equipment, the other end of the connecting rod is rotatably connected with the supporting plate, the supporting plate is provided with a connecting part, the drilling equipment is rotatably connected with the connecting part, and the connecting rod is located below the connecting part; the anti-falling device comprises a fixing rod, an expansion rod, an expansion blade and a mounting hole, the mounting h