You can restore a OneDrive for Business user to a different OneDrive account.
From the navigation pane, go to Protect > Office 365.
The Office 365 apps page appears.
Click the app that contains the user.
The app page appears.
On the Users tab, select the user that you are restoring a file for.
Click Restore, and then click Restore files.
Select the files to restore.
You can also search for a file from the Search box.
The Restore options dialog box appears.
From the Restore destination list, select OneDrive for Business.
Under OneDrive account, specify the location to restore the file:
Select Restore the data to another location.
In the User box, click Browse, and then select a OneDrive account.
In the Folder box, click Browse, and then select a location.
By default, the file is restored in the root folder.
Under File options, specify what to do with existing items:
To not overwrite existing items, select Skip.
To keep as a copy of the existing item, select Restore as a copy.
To overwrite existing items, select Unconditionally overwrite.
If the original file is deleted from the OneDrive account, then the file is restored with its name. If the original file still exists, then the file is restored as a copy of the original file.
Tip: To search for data to restore, use the search box in the upper-right area of the page. When you click the search box, more search capabilities appear.