Waste concrete raw material extraction and recovery device for building construction

The utility model discloses a waste concrete raw material extracting and recycling device for building construction, which relates to the technical field of waste concrete raw material extracting and recycling equipment and comprises a box body, a filtering unit, an extruding unit, a crushing unit and a grinding unit, a partition plate is arranged in the middle in the box body; the filtering unit comprises a first filtering plate, a second filtering plate, a first mounting frame, a first motor, a second mounting frame, a second motor, a rotating disc, a connecting column, a transmission beam and a connecting base, the first filtering plate is longitudinally arranged at the position, located at the upper end of the partition plate, in the box body, and the left end and the right end of the first filtering plate are slidably connected with sliding grooves formed in the left side and the right side in the box body; the rear end of the first filter plate is slidably connected with a sliding hole formed in the upp