From Schengen to Schengen via PEK

If I fly the route AMS-VIE-PEK-WAW-AMS, can I use the visa free 72hr transit? (provided I stay less than 72hrs in Beijing)
I will be flying into Beijing from Austria. I fly out of Beijing to Poland. These are two different countries, but both in the Schengen 'region' and both in Europe. Let me know.