When you leave the airport and arrive at the exit, take Light Rail Line 3 and pass Jiangbei Airport-Bijin-Shuanglong-Huixing-Changfu Road-Cui Yun-Garden Expo Park-Yuanyang-Jintong Road-Jinyu-Tongjiayuan-Chongqing North Railway Station-Shiziping-Tangjiayuan-Zhengjiayuan-Jiazhou Road-Hongqi Hegou-Guanyin Bridge-Huaxin Street-Niujiaotuo (get off);
Transfer to Light Rail Line 2 at "Niujiaotuo" Station via-Liziba-Fotuguan-Daping; After leaving the station, walk back about 300 meters to Daping Hospital. If you open a shop by the roadside, you will know Daping Hospital casually after you leave the station. This route is very fast, and the fare is within 10 yuan.
I hope the above information is helpful to you. Good luck!