Support-free open-cut tunnel movable workshop lining construction equipment and method

The invention discloses support-free open-cut tunnel movable plant lining construction equipment which comprises a movable plant arranged in a tunnel, the movable plant comprises a bottom plate, a fixed shell fixedly arranged on the bottom plate and a sliding shell arranged on the bottom plate in a sliding mode, and one end of the sliding shell is arranged outside the fixed shell in a sleeving mode; the sliding shell slides in the length direction of the bottom plate, a walking mechanism is arranged at the bottom of the bottom plate, a steel bar trolley and a formwork trolley are fixedly arranged on the bottom plate, the steel bar trolley is located in the fixed shell, notches are formed in the positions, close to the formwork trolley, of the two sides of the bottom plate in the length direction, and a crane is arranged between the steel bar trolley and the formwork trolley. An inner mold is arranged on the template trolley, an outer mold is arranged on the top of the tunnel, end molds are arranged at the two