Pore-free multi-piece pattern block

The invention discloses a pore-free multi-piece pattern block which comprises a connecting base and a plurality of groups of pattern pieces, wherein the pattern pieces are connected into the connecting base in a clamping manner and sequentially arranged; back holes are formed in one side of the connecting base; bolts are inserted into the back holes; one end of each bolt extends into the corresponding pattern pieces; and circumferential air channels are arranged on two sides of the interior of the connecting base. The pore-free multi-piece pattern block disclosed by the invention has the beneficial effects that through the assembly of the connecting base and the pattern pieces, air is discharged into the circumferential air channels through air discharging grooves and air holes which communicate in the pattern pieces, and then the discharged air is exhausted, so that the insertion and replacement of air hole sleeves can be eliminated, the cost can be reduced, and the efficiency can beimproved; the air dischar