gPodder is a very simple application that allows you to download and listen to podcasts in an easy and simple way. The interface of the program gives you access to many podcasts and gives you the possibility to download it to listn to it later.
Clementine is another free podcast player for Windows. Using this free and easy to use software, you can play audio podcasts only.. You can add new podcast channels in it by using their feed URLs or by using other available options such as directory or iTunes store.