Stepping-type cross-rail ballast digging machine

The utility model relates to a stepping-type cross-rail ballast digging machine. A transverse table and a stepping working unit are arranged on cross guide rails, a horizontal working oil cylinder and a vertical moving frame are mounted above the transverse table, a cantilever and an inclination flip oil cylinder are arranged on the vertical moving frame, the inclination flip oil cylinder and the cantilever are respectively hinged with a ballast digging mechanism, the stepping working unit and the transverse table are controlled to move forwards intermittently through the horizontal working oil cylinder so as to enable the ballast digging mechanism to move unidirectionally, and ballast digging cutter toothed plates of the jumble digging mechanism are driven to cut in and leave railway ballasts through a piston rod of a vertical working oil cylinder mounted on the vertical moving frame; operation angle of the ballast digging mechanism is adjusted by the aid of the inclination flip oil cylinder; by the reasonable layout and mutual matching of ballast digging teeth, guiding plates and side retaining plates on the ballast digging cutter toothed plates, continuous and efficient digging and lifting is realized, construction efficiency is improved, operation performance is reliable, construction quality is high, and the stepping-type cross-rail ballast digging machine is applicable to industrial promotion.