How to go to Beijing airport from Beijing Hua Thai Hotel?

How to get back from this Hotel to airport
need to get to this hotel
华泰饭店
北京市朝阳区东三环南路劲松桥南, 崇文区, 100021 北京
Hua Thai Hotel
East End of Jinsong, Chaoyang District, Chong-Wen, 100021 Beijing

Could you indicate the nearest bus station that goes to airport. I will appreciate if you could provide a near cross between two streets for this bus station.
Thank you!