Wordpress is PHP and MVC is C#. You can't just put "wordpress" into your c# mvc framework project as one is C# the other is PHP. Wordpress is just a blogging framework/platform, blog frameworks and platforms exist in MVC, you just have to do a little bit a research (only you know what you want in a blog framework).
I can only assume you are looking for blog functionality either in an MVC project or hosting Wordpress on an IIS server.
Here are some options, some are more trying to fit a square peg through a round hole but none the less, answering your question.
* You could embed an iframe in your mvc project that points to the wordpress site itself (this is not a great option).
* Google search for your exact problem:
Wordpress blog in MVC5[
^]
* Host wordpress in IIS:
Host wordpress in IIS[
^]
* Or lastly, look at a wordpress alternative built in MVC like
GitHub - danielpalme/MVCBlog: Blog engine based on ASP.NET MVC 5 and Twitter Bootstrap 3[
^]