Once again Thank you Bro for your kind Reply.
I successfully Compiled and Installed the Libraries through Command Prompt by setting 'path' variables to Qtcreator->Mingw->bin and Qt->version->Mingw->bin and executing the following command

@ qmake && mingw32-make --always-make -install @

It successfully compiled and installed the plugins to qml Import Paths.
On importing module in qt qml project it says Dumped Plugins Successfully and also suggests the Keywords while typing..... but when i compile it says module "Box2D" is not installed . Screenshot (11).jpg . I dont know why these things happen.

AnyHelp Regarding This.
Thanx in Advance.