How I want to go from Shenzhen airport to Longhua District using the metro line/train

1. Yes, you need to transfer for three times. Take metro line 11and transfer to line 5 at Qianhaiwan, and then transfer to line 4 at Shenzhen North Railway Station, get off at Qinghu from Exit C, after that, you are suggested to take a taxi there, which may take CNY 30-40.
2. There are many halal restaurants near Longhua Bus Station. Within 300 yards to the north is a Lanzhou Beef Noodles, within the same distance the opposite lie more restaurants like Muslim Beef Noodles, Roast Whole Lamb, and another Lanzhou Beef Noodles.