Good day! i'll fly from Manila to Almaty (Kazakhstan) via Beijing aiport.

i'll arrive to PEK by PR airline at 0125am in terminal 3, then depart from PEK airport from terminal 2 at 0555am by another airline (Air Astana). i'll have 4h 30min in PEK airport and i don't have Chinese Visa.

so my question is may i use this flights/terminals without transit visa and do you have any transit zone there?