Could you please suggest me the best Way to get by Public transportation from yuanyang to puzhehei and from puzhehei to kunming?

There is no direct bus between, so transfering is necessary.
From Yuanyang, you need to go to the Xinjie Town to take a bus for Gejiu. There you can take the only one bus from Gejiu to Wenshan Town. Then it is suggested to hire a local car for Puzhehei directly.

From Puzhehe, you need to go back to Wenshan Town, where you can find the direct bus for KM.