The invention relates to a portable vertical well derrick. The portable vertical well derrick comprises three supporting rods, bottom plates, reinforcing rods, fixing mechanisms, safety rails, a working plate, a circular rod and balance mechanisms, wherein the bottom plates are welded to the lower ends of the supporting rods at the bottoms, the bottom plates are connected with cement pouring layers through the fixing mechanisms, connecting circular holes are formed in joints of the interiors of the bottom plates and the fixing mechanisms, the reinforcing rods are fixed to the outer walls of the supporting rods through bolts, and the two reinforcing rods are installed in a cross mode. The working plate is arranged at the upper ends of the supporting rods at the tops, the working plate and the supporting rods are fastened through bolts, and the safety rails are arranged on the outer side of the working plate. The connection stability between the portable vertical well derrick and the cement pouring layers is high, the firmness is high, the long-distance transportation is convenient, assembly and disassembly are simple and convenient, the stability of materials conveyed in a well by atraction rope is effectively ensured, so that a transported material is not prone to scattering.