Hi, it is Ok to take the bullet train with your travelling luggages. Well, you need to check your luggages if they are over 20kg.

Thanks David.You seem to have travelled in the bullet train before.
Do u by any chance know how much taxi fare fr Tianjin Airport to Tianjin Train Station?
And to go to Wangfujing St,Beijing-do I take train to Beijing Stn or Beijing South Stn?

The taxi fare from Tianjin Airport to Tianjin Railway Station should be around CNY40~50. And, the train will arrive at Beijing South Railway Station, where you could take metro Line 4 to Xidan and then transfer to Line 1 to Wangfujing Street quickly. Enjoy the trip~