Sludge discharge equipment comprising a vacuum pump and a sludge discharge tank consists of the vacuum pump, an air suction pipe, a sludge storage tank, a liquid level meter, a sludge suction pipe, sludge discharge pipe, a sludge discharge valve, a bell-type valve, the sludge discharge tank, an air inlet valve, an air inlet pipe and a delivery pipe. The sludge storage tank is arranged above the sludge discharge tank, the air suction pipe is arranged on the left end of the sludge storage tank and is connected with the vacuum pump, the liquid level meter is installed at the inner upper part of the sludge storage tank, the sludge suction pipe is arranged on the right end of the sludge storage tank and extends into sludge in a water sump, the sludge discharge pipe is arranged below the right end of the sludge storage tank and is provided with the sludge discharge valve, and the sludge in the water sump is sucked into the sludge storage tank from the water sump under the action of the vacuum pump. The sludge discharge tank is arranged below the sludge storage tank, a feed port is formed in the upper end of the sludge discharge tank and is connected with the bell-type valve for controlling slurry to flow into, the air inlet pipe and the air inlet valve are arranged on the left upper end of the sludge discharge tank for controlling high pressure air to flow into the sludge discharge valve, and the delivery pipe is installed on the right upper end of the sludge discharge tank for delivering the slurry. The sludge discharge equipment has the advantages of simple equipment, convenience in maintenance, large delivery capacity, long service life, long delivery distance and less investment.