Hi @YuZhang,
These two sets of files are quite different. If you would like to curate your own SILVA reference database then the files from SILVA (your first screen-shot) can be downloaded and imported into QIIME 2 for further processing.
We’ve made this part much easier for you, via the RESCRIPt plugin. 
Otherwise, the pre-made classifiers (your second screen-shot), and the files used to make them, can be found on the Data resources page. These have already been preprocessed through RESCRIPt for you. 
-Cheers!