%h1 = ( "key1","value1","Key2", "value2" );
%h2 = ( "Key1","value1","key2", "value2" );

# Declared two hashes

%hoh = ( "key1" => \%h1, "key2" => \%h2 );
foreach $key (keys %hoh){
   $innerHashRef = $hoh{$key};
   foreach $innerHashKey (keys %$innerHashRef){
      print "Inner Key: $innerHashKey";  <-- this does not work
   }
}