 The research examines the characteristics of air leakage in a white-type ventilation system used in gobside entry retention with roof cutting, pressure relief, and the resulting gas accumulation, GA. The CFD simulation incorporating the parameters of the working face, WF, mining was employed to analyze the air leakage of white-type ventilation in the dachshund coal mine. The gas concentration, GC, exceeding the limit in the upper corner of the gulf was simulated. The results showed that the gulf was formed into an open space when roof cutting and pressure relief technology were implemented. The air pressure at the upper corner of the WF was the lowest, which was only 1.12 pascals. The airflow of air leakage under a pressure difference moved from the gobside entry retaining to the gulf. Additionally, the simulation of mine ventilation indicated that the volume of air leakage positively correlated with the length of gobside entry retaining. When the WF was advanced 500 meters ahead, the maximum volume of air leakage reached 247 cubic meters per minute within the range of 5001300 meters, and this article was authored by Xihua Zhu, Zhaohao Jing, and Yang Changli. We are article.tv, links in the description below.