Laver nursery pond with purification device

The laver nursery pond with the purification device comprises a pond body, a cover plate is correspondingly arranged above the pond body, filter screens are arranged at the two ends of the upper portion of the cover plate, the two ends of each filter screen are fixedly connected with limiting blocks, limiting grooves are formed in the two ends of the cover plate, and the limiting blocks correspond to the limiting grooves. A limiting block is arranged on the upper portion of the cover plate, a protruding block is arranged in the limiting block, a groove is formed in the outer side of the cover plate in a penetrating mode, the protruding block corresponds to the groove, a filter screen is arranged on the upper portion of the cover plate, seawater entering the nursery pond can be filtered, and silt in the seawater is prevented from affecting the nursery effect of laver; meanwhile, limiting blocks, limiting grooves, grooves and convex blocks are arranged, so that workers can conveniently detach and clean the filt