本文从理论上提出了采空区漏风通道的新概念，将其分为能自燃漏风通道、不自燃小漏风通道、不自燃大漏风通道３种。并将采空区分为“Ｕ”形漏风区、小漏风区、中漏风区与大漏风区４区。跳出了国内外学者长期沿用的三区分法，使之与采空区的实际自燃点分布更为一致。还介绍了防漏墙的设计参数与现场应用情况 In this paper, a new concept of air leakage duct in goaf is put forward in theory, and divided into three kinds: self-ignition air leakage channel, non-self-ignition small air leakage channel and non-spontaneous big air leakage channel. And the goaf is divided into “U” -shaped air leakage zone, small air leakage zone, middle air leakage zone and large air leakage zone 4 zone. It jumps out of the long-term three-division method by domestic and foreign scholars, making it more consistent with the actual spontaneous combustion point distribution in the goaf. Also introduced the design parameters of the leakproof wall and field application