Well pipe building device

The utility model provides a well casing device for well building. The well building well casing device comprises a first well casing and a second well casing connected with the first well casing through a connection reinforcing assembly. The connection reinforcing assembly comprises a first reinforcing plate and a second reinforcing plate connected with the first reinforcing plate. Limiting grooves are symmetrically formed in the two sides of a shell of the first reinforcing plate, limiting blocks are symmetrically arranged on the two sides of a shell of the second reinforcing plate, annular limiting blocks are arranged in the first reinforcing plate and the second reinforcing plate, and connecting bases are arranged on the two sides of the outer surface of the first reinforcing plate and the two sides of the outer surface of the second reinforcing plate. In this way, well casings are connected more tightly, and after well construction is completed, the device is pulled out and is not prone to falling off; w