Do i need a china visa if i just stay in the airport while waiting for my nxt flight?

I booked a two way ticket Dubai manila dubai.my iteneraries are dubai to urumqi ill stay there for 1hour and 40 minutes then urumqi to guangzhou another 5 hour and 45 minutes before my flght from guangzhou to manila.then coming back to dubai so manila to guangzhou den ill stay there for 12hours and 40 minutes overnight before i trvel guangzhou to lanzhou then another 2hours and 15 minutes stay before i fly from lanzhou to dubai.do i need a china entry permit pls answer