Chengdu Chunxi Road to Tianfu Square how to go, urgent

Walking to the north exit of Chunxi Road, this ask to know, and then you can see the Shudu Building, do not know where to ask the Shudu Building, Shudu Building, there is a station below the building to catch a lot of roads can be to Tianfu Square, but many roads to go through the tunnel, out of the tunnel on the next station, and then from the destination is very close to the very close