Rapidly refitted secondary lining trolley and lifting refitting method thereof

The invention discloses a quick-refit secondary lining trolley which comprises a trolley door frame, a trolley body, a trolley body, a trolley body and a trolley body, the trolley body door frame comprises two vertical supporting rods and a transverse rod connected to the tops of the two vertical supporting rods, and the two vertical supporting rods and the transverse rod are connected into a door shape; the lower parts of the two vertical supporting rods are respectively connected with a supporting seat; the adjusting and supporting structure comprises an adjusting block, a jack and a steel gasket; the jack is erected above the portal frame bottom beam, and the top of the jack abuts against the supporting base. The adjusting block and the steel gasket are movably connected to the upper portion of the portal bottom beam, and when the jack stretches out to lift the trolley portal to the designated height or the maximum height, the adjusting block is moved to the position between the trolley ...