Non-metal casing pipe used for coalbed methane exploitation and application thereof

The invention provides a non-metal casing pipe used for coalbed methane exploitation. The casing pipe comprises a casing pipe body and a non-metal fiber layer arranged on the peripheral wall of the casing pipe body, wherein the casing pipe body is a barrel made from one or more of unsaturated polyester, vinyl ester, epoxy resin, phenolic resin, bismaleimide and polyimide resin, and the non-metal fiber layer is made from one or more of glass steel fibers, carbon fibers and nylon fibers. Non-metal fibers are wound on the peripheral wall of the casing pipe body to form the non-metal fiber layer, the axial strength and the circumferential strength of the pipe are adjusted, and the axial mechanical performance requirement of the high-pressure pipe is met. The casing pipe body is formed by curing a resin material, the non-metal fibers and a resin substrate can form a good bonding interface and a unique three-dimensional network cured structure, and therefore cracks can be effectively prevented from forming and spreading, and deep corrosion caused by a medium through the capillarity is prevented.