If you have a developer edition, but can't see the WSDL links for some reason (you should be able to), you can go directly to the WSDL URLs.
For the Enterprise WSDL:
For the Partner WSDL:
You will need to replace serverinstance with your pod. E.g. na2
Make sure your browser has a valid session when requesting the WSDLs so the correct cookie is sent with the request.
Note that the Enterprise WSDL is customised to the Org it was generated for. So if you have made schema changes (added a field or custom object) it will change this WSDL.