Tunneling and anchoring all-in-one machine with shield capable of sliding in advance

The utility model relates to the technical field of digging and anchoring all-in-one machines, in particular to a digging and anchoring all-in-one machine with a shield capable of sliding in advance, which comprises a base, a telescopic mechanism, a shield and a protective lug plate. The telescopic mechanism is arranged on the base; the shield is arranged on the telescopic mechanism, the telescopic mechanism can drive the shield to obliquely ascend and descend according to a preset path, and the shield can stretch out and draw back in the plane where the shield is located so as to change the supporting area; the protection lug plate is arranged on the shield and can vertically ascend and descend relative to the plane where the shield is located. The shield can stretch out and draw back to change the supporting area, so that the shield can support the empty roof of the roadway, the caving risk of the roof of the roadway is reduced, and the construction safety is improved. When the shield supports, a certain an