Having 2 Apple ID's is possible. Go to the AppleID website and create an new apple ID by filling in the requested information. You will most likely need to use an email not registered to an Apple ID yet, and possibly a phone number as well.
You may use one apple ID to sync to your icloud, and your second Apple ID to log into all of your Apple Purchases and Store accounts i.e. iTunes, iBooks, etc. The above users are right, in that you can not merge these two accounts. However, you can turn on "family sharing" to link these accounts, in order to share purchased apps accross each account.