Secondary soil breaking type sub-soiling shovel

The invention discloses a secondary soil breaking type sub-soiling shovel which comprises a shovel handle, a wear-resisting blade and a shovel point protection sleeve. The shovel handle extends to a shovel point downwards and inwards. The wear-resisting blade is detachably fixed to the inner side of the shovel handle. The shovel point protection sleeve is detachably fixed to the shovel point, and a secondary soil breaking blade is arranged on the shovel point protection sleeve for secondary oil breaking. According to the secondary soil breaking type sub-soiling shovel, the shovel handle and the shovel point are integrally formed, so that the shovel point has good rigidity. Meanwhile, the replaceable shovel point protection sleeve is adopted for protecting the shovel point, the shovel point is prevented from being abraded, and the overall service life of the sub-soiling shovel is prolonged. The shovel blade is made to move forwards through the secondary soil breaking blade arranged on the shovel point protection sleeve, a secondary soil breaking function is added, the soil breaking effect is improved, work efficiency is improved, energy consumption is reduced, and energy is saved. The replaceable wear-resisting blade is adopted, so that the soil cutting effect of the sub-soiling shovel is improved, the sub-soiling work efficiency is improved, the wear resistance of the sub-soiling shovel is improved, and the service life of the sub-soiling shovel is prolonged.