Negative-pressure concrete bubble removing device

The utility model discloses a negative-pressure concrete bubble removing device which comprises a hopper and a negative-pressure bin communicated with the hopper, negative pressure is formed in the negative-pressure bin through air exhaust of a vacuumizing device, concrete entering the negative-pressure bin is subjected to deep exhaust, the bubble removing purpose is achieved, and compared with vibration exhaust, exhaust is more thorough and faster. Spiral blades are arranged in the hopper, the negative pressure bin is communicated with the transportation bin, and the force application mechanism is arranged at the tail end of the transportation bin for sealing, so that the negative pressure state in the negative pressure bin can be continuously maintained, meanwhile, defoaming operation can be continuously performed only by continuously injecting concrete grout into the hopper, the work is continuous, and the operation efficiency is improved; and a high-pressure water pump is further included, the whole set o