Building construction elevator

The utility model relates to the technical field of building construction, and discloses a building construction hoist which comprises a base, a buffering device is arranged in the base and comprises a fixing block, the fixing block is fixedly installed on the bottom side face in the base, and two sets of buffering blocks are fixedly installed on the side face of the fixing block in a mirror image mode. According to the buffer device, when the movable baffle continues to move downwards, the movable baffle extrudes the buffer device, the movable baffle extrudes the connecting block, and the connecting block extrudes the two sets of buffer blocks, so that the two sets of buffer blocks deform, and a second layer of buffer is provided through deformation of the buffer blocks; when a buffer block deforms, a connecting block extrudes a first extrusion block, so that a third layer of buffer is provided, when the buffer block deforms, the buffer block extrudes a second extrusion block to deform the second extrusion b