The invention discloses a
cement mixing device for bridge construction. The
cement mixing device structurally comprises a rotator, a
machine body, a sealing ring and supporting feet, wherein the bottom end of the rotator is mounted at the top end of the
machine body in an embedded manner, the sealing ring is arranged at the bottom of the
machine body, the sealing ring and the machine body are of an integrated structure, top ends of the supporting feet are welded to the bottom end of the machine body, the sealing ring is located below the rotator, and the machine body comprises a rotating mechanism, a fugitive dust preventing mechanism, a material controlling mechanism, a water adding mechanism, a control module, a pressing mechanism and a shell. According to the
cement mixing device, through improving an equipment structure, when the cement mixing device is in use, the proportion of water can be adjusted according to weight of cement flour, and the condition that
blended cement is toodiluted and cannot reach construction standards due to the fact that the content of water is relatively high during water adding is prevented; and meanwhile, a valve can be automatically closed when the adding of the cement flour reaches maximum, thus, the continuous adding of the cement flour is stopped, and the condition that the cement flour is excessive and is not prone to stirring is avoided.