The invention discloses a crushing production line device for processing waste concrete recycled aggregates. The crushing production line device successively comprises a three-level crushing machine,a pre-crushing disc assembly, a centrifugal crushing blanking apparatus and a pin-roll lamination crushing apparatus according to the sequence of a technological process; the three-level crushing machine is used for crushing the concrete blocks with no iron impurities and non-iron impurities for three times, the pre-crushing disc assembly is used for centrifugally pre-crushing agglomerates and blocks in the crushed particles, and the centrifugal crushing blanking apparatus is used for secondarily crushing the pre-crushed particles and intermittently blanking the secondarily crushed particles;and the pin-roll lamination crushing apparatus is used for vertically extruding the secondarily crushed particles and also rolling crushing the particles. The crushing production line device of the invention has the advantages that the raw material can be crushed in various manners, the equipment integration degree is high, the raw material can be thoroughly crushed, the crushing efficiency is high, the smashing effect is good, the aggregate recycling rate of the recycled concrete is improved, the smashing effect is good, and the aggregate recycling rate of the recycled concrete can be improved.