transfer from Huyi fast train station to Xian Bell tower

It is not recommended to get off at Huyi station at all if you want to go to Xian. It is very far from Xian. You can choose Xian north Station as your destination directly. Usually the trains that stop at huyi will also stop at Xian North. After your arrival at Xian North Station, you can take metro line 2 to Bell Tower.