There are two sections of this Salah:
1) To say Allahu Akbar four times
2) Qayam which was three Sunnat Mukeda: Sana, Durood Shareef, and Duaa for the expired.
How To Pray Namaz-e-Janaza?
Muqtadee ought to make the niyyat, "I make the niyyat for the supplication to God of this janaza for Allah, duaa for this perished, behind this imam." Now the Imam and muqtadee ought to raise their hands to their ears and fold their hands underneath the navel as common whilst saying Allahu Akbar and read Sana, a slight distinction is that after wa ta'ala jadduka one must read wa jalla sanauka wa laailaha gairuk. At that point without raising the hands, say Allahu Akbar and read duroode Ibraheem; then without raising the hands, say Allahu Akbar and read the duaa. The Imam must say all the takbeer so anyone might hear while the muqtadee must say it gradually, whatever is left of the azkar (supplications) are to be read gradually by the Imam and Muqtadee. After the duaa, say Allahu Akbar and now drop the hands and afterward turn the head both sides for salaam.For more information please save as the given image and read it with concentration.