Windows 7 batch file Copy all files from a folder structure to one folder

I've a folder structure like

    Folder0
    -f1
       -f11
             file1.txt
             file2.txt
        -f12
            file11.txt
    -f2
        -f21
            file1.txt
            file2.txt
               -f13
                   file1.txt
                   file2.txt

Folder1
 -f4
     -f41
        file41.txt
        file42.txt
     -f42
        file41.txt
 -f5
     -f51
        file51.txt
        file52.txt
            -f53
                file51.txt
                file52.txt
etc...

and I want a merged folder like

Folder0
 file1.txt
 file2.txt
 file11.txt
 file1.txt
 file2.txt
 file2.txt

Folder1
 file41.txt
 file42.txt
 file41.txt
 file51.txt
 file52.txt
 file52.txt

can anyone please help me to create a batch file for the same.. I've about 200 folders like this..

please help