Submersible pump which comprises: - a support structure; - a first motor fixed to said support structure and provided with a first outlet shaft being extended along an axis; - a pumping body fixed to said support structure, provided with a first through opening inside of which said first outlet shaft is inserted, and provided with a suction mouth, through which a process fluid is susceptible to enter into said pumping body, and with a delivery mouth, through which said process fluid is susceptible to exit from said pumping body; - an impeller arranged inside said pumping body, fixed to said first outlet shaft and drivable by the latter to rotate around said axis in order to pump said process fluid from said suction mouth to said delivery mouth; - a support casing fixed to said pumping body, provided with a lateral wall being extended around said axis, and being extended along said axis between an upper end, connected to the suction mouth of said pumping body, and a lower end, provided with an inlet opening through which a first flow of said process fluid is susceptible to enter into said support casing; - a first filtering element arranged inside said support casing, provided with a second through opening through which said first outlet shaft is inserted, and provided with first filtering holes, through which first bodies of detrital material are susceptible to pass, such first bodies being smaller than said first filtering holes, and such first filtering element being adapted to intercept second bodies of detrital material larger than said first filtering holes; - an agitator element arranged inside said support casing; said submersible pump being characterised in that it further comprises: - a dispersion head, arranged at the lower end of said support casing, aligned with said axis and drivable in order to remove detrital material, which is susceptible to be conveyed by said first flow of process fluid into the inlet opening of said support casing; - wherein the agitator element is arranged between said dispersion head and said first filtering element, fixed to said first outlet shaft and drivable by the latter to rotate around said axis in order to bring said detrital material in suspension in said process fluid and to remove said second bodies of said detrital material from said first filtering element. - a support structure; - a first motor fixed to said support structure and provided with a first outlet shaft being extended along an axis; - a pumping body fixed to said support structure, provided with a first through opening inside of which said first outlet shaft is inserted, and provided with a suction mouth, through which a process fluid is susceptible to enter into said pumping body, and with a delivery mouth, through which said process fluid is susceptible to exit from said pumping body; - an impeller arranged inside said pumping body, fixed to said first outlet shaft and drivable by the latter to rotate around said axis in order to pump said process fluid from said suction mouth to said delivery mouth; - a support casing fixed to said pumping body, provided with a lateral wall being extended around said axis, and being extended along said axis between an upper end, connected to the suction mouth of said pumping body, and a lower end, provided with an inlet opening through which a first flow of said process fluid is susceptible to enter into said support casing; - a first filtering element arranged inside said support casing, provided with a second through opening through which said first outlet shaft is inserted, and provided with first filtering holes, through which first bodies of detrital material are susceptible to pass, such first bodies being smaller than said first filtering holes, and such first filtering element being adapted to intercept second bodies of detrital material larger than said first filtering holes; - an agitator element arranged inside said support casing; - a dispersion head, arranged at the lower end of said support casing, aligned with said axis and drivable in order to remove detrital material, which is susceptible to be conveyed by said first flow of process fluid into the inlet opening of said support casing; - wherein the agitator element is arranged between said dispersion head and said first filtering element, fixed to said first outlet shaft and drivable by the latter to rotate around said axis in order to bring said detrital material in suspension in said process fluid and to remove said second bodies of said detrital material from said first filtering element.