Lifting elevator derrick suitable for elevator shaft

The utility model relates to the technical field of elevator derricks, in particular to a lifting elevator derrick suitable for an elevator shaft, which comprises a bottom module arranged in the elevator shaft and a plurality of standard knot units stacked on the bottom module. The bottom module comprises a first rectangular frame, a second rectangular frame and at least four first supporting columns from bottom to top. The two ends of the first supporting columns are used for being connected with the first rectangular frame and the second rectangular frame correspondingly. The first rectangular frame comprises two opposite and parallel main keels and two opposite and parallel secondary keels, the main keels and the secondary keels are connected to form a rectangular frame, telescopic extension square tubes are arranged in the main keels in a sleeved mode, operation handles used for pulling the extension square tubes are arranged on the extension square tubes, limiting grooves matched with the operation handl