Four-arm digging, anchoring and protecting all-in-one machine

The utility model provides a four-arm digging, anchoring and protecting all-in-one machine, which belongs to the technical field of coal mine equipment, in the four-arm digging, anchoring and protecting all-in-one machine, a front support part comprises an upper connecting rod, a side link I, a side link II, an operation platform, a platform lifting oil cylinder, a platform adjusting oil cylinder, a support lifting oil cylinder, a telescopic sleeve, a sleeve telescopic oil cylinder, a support swinging oil cylinder and a support frame. The front supporting part has the double functions of an operation platform and temporary supporting, during working, the platform lifting oil cylinder stretches out and draws back to drive the upper connecting rod, the connecting frame rod I and the connecting frame rod II to swing around the lifting arm, the height and the front-back position of the operation platform are controlled, and the platform adjusting oil cylinder stretches out and draws back to enable the operation p